porting oldsmobile heads

Giant Killer by Chris Hemer, Popular Hot Rodding Bigger isnt always better and Mondellos 307 Olds proves the point. s !1AQa"q2B#R3b$r%C4Scs5D'6Tdt& I plan on finding a GT-40 upper and lower intake. We also use third-party cookies that help us analyze and understand how you use this website. The oldest castings (used on the 1965 400 to 425-ci engines) have the letter A, and the latest big-block production castings have the letter J. The series ended there. The impetus for the design came from, of all places, a look at the Chevrolet SB2-style cylinder head and its excellent-flowing, modern combustion chamber and port design. But what can we do to help? The lowest combustion chamber volume I ever had on an Edelbrock Performer RPM head with the standard combustion chamber was on the 2009 Engine Masters Challenge engine at 46 cc. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Speedmasters 6-71 Street Supercharger kits can give you 45-55 percent more streetable power. But I have not had a failure with these gaskets on cast-iron cylinder-head engines. When you remove a cylinder head torqued up with a copper head gasket, you literally have to pry the gasket off the block because the soft copper embeds into the receiver grooves, which is what seals the combustion pressure. I wouldnt say these gaskets are the best choice for aluminum heads. v*UWb]v*U??~Z }e{XWU=_PF*+m (.__Z =j:S{O*>})Hu{Gl;bwyl8W8? Copper head gaskets get a bad rap from people, mostly because the O-ring job was performed incorrectly, allowing coolant into the engine. But opting out of some of these cookies may have an effect on your browsing experience. The oldest castings (used on the 1965 400 to 425-ci engines) have the letter A, and the latest big-block production castings have the letter J. Fully cnc'd. A street port job will open things up nicely. you have a ported head. During the early 70s, this winning father-son combination went to work at the Parker Dam 9 hour enduro, winning the Jet Boat class with an Olds 455 in 1972 and in 1975 & 1976, back to back wins with a 500 c.i.d. If its a 383 stroker, you can probably go with 200cc intake runners. 0000000833 00000 n They are available for popular V8 engines. So, which heads are the best performers, and how can you spot them? My question is how far can you port these heads? CNC Ported heads eliminate human error and variation from port to port. Standard full port goes about 250cc and flows over 340 cfm. Mated with the fuel injection, it starts right up, has a nice raspy idle and great throttle response., 572 HEMI in a 64 Dodge 440 - Best Machine Racing Engines built the engine - we chose the Edelbrock heads as they were impressive castings with great finish and flow right out of the box! The EX port is really good. NO WATER BY PORTS SO PORTING IS INFINITE. They must line up perfectly to each other. Olds Oldsmobile 1969 BareC Heads / 455 / XLNT! These heads were a good bang for the buck with room to grow vs the cam that I am running. Side & Ream Head Bolt Holes, Finishing of Custom Unfinished Race Block, Machine / Align Bore for Big Ford Cam Bearings, Balancing V-8 Assemblies (Heavy Metal to Balance Additional Time & Material), Intake Match, Bowl Blend, Polish Chamber& Exhaust Port (Pr). Specs . For instructions on how to enable JavaScript, please see the help section of your browser. This category only includes cookies that ensures basic functionalities and security features of the website. This website uses cookies to improve your experience while you navigate through the website. This method brings you pretty close. All Steel Roller-Tip Adjustable Rocker Arm Systems, All Steel Roller-Tip Adjustable Rocker Arm Systems (Cast Iron Applications), Non-Roller Adjustable Rocker Systems (Cast Iron Applications). Olds Oldsmobile 1969 BareC Heads / 455 / XLNT! CNC finish faces and bolt holes for extreme accuracy, T6 heat treated gravity die cast construction (alloy heads only), OEM accessory bolt patters for simply compatibility, Plenty of material for upgrading to larger HP applications, Machined for screw in studs and guide plates, Flame hardened valve seats for use with all fuel, High Performance Street & Light Racing Application, Lightweight Valve Springs for maximum lift, High Perofrmance Chrysler 426 & 572 HEMI engines. We wanted to keep the design as close to OEM specs as possible so that guys could bolt these on using existing components, but have a chamber design thats modern. Some manifolds may not have enough material and runner volume to match, but the Edelbrock Victor (PN 2812) does. The first step is to understand the causes of climate change and how we can reduce our impact on the environment. The 2 columns are a before and after bowl porting/blending. Reusing this cam for this year. I'm sure I'll get flamed for not using e-brocks anyways.. Horsepower Secrets by Chris Hemer, Musclecar Review How to make a stock-looking engine run like the wind. Rocker arms and other supplemental parts increase the price as well. Those Shelby Ford Cobras, 1st, 2nd, 3rd & 4th places respectively. They did change quite a bit in the later smog engine years. It looks like you could go huge on the exhaust ports, but I know that sometimes going too big actually kills velocity. I only use these on cast-iron head engines. ***CALL FOR PRICING DUE TO NATONAL SHORTAGE ON PARTS AND MATERIALS***CUSTOM - SPECIAL MACHINING or ENGINEERING BY QUOTE. WebEdelbrock RPM Olds 455 Head Porting HeavyOlds 268 subscribers 642K views 15 years ago The scariest thing I ever did was port a set of new Edelbrock aluminum cylinder heads. There is not a better method of sealing combustion than the copper head gasket with the proper O-ring and receiver grooves machined into the head and block. &6E'dtU7()euFVfvGWgw8HXhx9IYiy*:JZjz ? Always remember, at Mondellos you get what you pay for: Horsepower, not promises. Stage I BP: $300 Our "street" port job - a minimum recommended porting stage. Back when I ran the NHRA Stock Eliminator W-30 engine, I used the factory .017-inch embossed steel shim head gasket. There is a spacer system to make everything work with a big-block Olds. Edelbrock recommends a Champion plug in their info for the head. Get Heads Shop reviews, rating, hours, phone number, directions and more. These gaskets basically consist of two layers of embossed hardened steel and a shim of desired thickness between. By continuing to use our site, you agree to their use. We'll be back on Monday, January 3. WebOffering top notch Aluminum Cylinder Head Porting and Cylinder Block Machining Services for High Performance Racing Engines by Race Engine Builder Steve Schmidt. THE ONLY WAY TO ACHIEVE EQUAL FLOW AND FILLS ALL CYLINDERS THE SAME WAY, WHICH YIELDS HIGHER HORSEPOWER AND HIGHER TORQUE NOT SEEN WITH OTHER HEADS. Build your own custom newsletter with the content you love from Dragzine, directly to your inbox, absolutely FREE! I have milled factory iron, Batten, and Edelbrock Performer RPM heads as much as .100 inch for certain applications. 1101 W. Rialto Ave. Rialto, CA 92376, USA+1 (310) 361-0020, 23 Mount Erin Rd,Blair Athol NSW 2560, Australia+61 2 9607 2299. Heads come with 5 angle valve job. The same goes for the intake and exhaust ports on the muscle-car-era castings. When milling to reduce the combustion-chamber volume, it takes approximately .006 inch of deck surface removed per cubic centimeter of reduced combustion-chamber volume. Developed by William Estler in the 1940s, this tomato is known for its large size, sweet flavor, and disease resistance. Milling cylinder heads for increased compression is a relatively easy operation because Oldsmobile cylinder heads are square and can easily be cut without any special fixturing. The heads are offered in four different configurations, from a basic CNC-chamber, CNC intake/exhaust port design that flows 340 cfm on the companys Superflow SF600 flowbench all the way up to the big-dog 400-plus cfm max-effort cylinder head designed for all-out racing applications. CNC combustion chambers offer superior control over flame travel and quench area. With the right seat cutters, the bowl is larger and the bowl shape allows a better transition for the air/fuel mixture to exit the valve, thus increasing available horsepower. These guys have alot of experience and helpful and cheap, Nirmal is a good guy with alit of experience, Worst experience nasty attitude doesn't take responsibility he has had my motor for 8 months for 30 over bore hot tank and flycutting pistons had to return motor 3 times found metal shavings in motor motor was dirty and stay away from nirmal stay away. Our office will be closed December 31. Stage III: See below for pricing Complements any head porting for maximum horsepower. From basic "Hot-Rod" mild cylinder head porting for that street and strip machine to all out class competition machines where every horsepower matters, you're in good hands with CFM Performance! Pricing is for traditional V-8 cylinder head pairs. The factory iron small-block cylinder head has some very small intake ports and is very plain to see. Copyright 1995-2023 Rocket Racing & Performance LLC. All of the great drag race cars ran with Mondello. Mondello Performance Products, Inc. 1103 Paso Robles Street Paso Robles, California 93446, Toll Free Order Line: 877-322-4489 (Ordering with part numbers only). $3795. WebALL ROCKET RACING CYLINDER HEADS ARE BUILT PER CUSTOMER APPLICATION.PLEASE CALL TO ORDER. The Oldsmobile V-8 engine is not dead, says engine builder Brad Wise of Wise Performance Engineering. First of all, I'm just a homegamer in the Oldsmobile cylinder head department. So give your heads a check with a set of vernier calipers to make sure that the deck surfaces are parallel to the valve-cover rail and the same as each other. 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Web2- New Casting the 370 are factory ported cast from a 375X port this is a 2 new BB/C Pro Filer 385X racing heads. Combustion Chamber, Exhaust and Intake Ports all fully CNC machined for better flow. The most popular for street applications are: the FelPro PN 8171 PT1; the FelPro PN 1155; and the Corteco PN 55660HG in .040-inch-thick and PN 55661HG in .028-inch-thick versions. Submit your email to receive the latest stories and expert advice Dont ever let anyone tell you that you dont need a receiver groove in these copper head gasket/O-ring applications. This modification is easily performed during the valve-job operation and turns an old, rusty, worn-out cylinder head with pitted seats into a set that is in brand-new condition. 32806 407-855-9559 rocketranch@msn.com. All rights reserved. They are a clean sheet of paper design. The cylinder head is machined so that the stainless .041-inch-diameter O-ring protrudes .015 inch up from the deck, and the corresponding .040- to .060-inch-wide receiver groove is machined at the same depth into the block. These heads are capable of over 400 cfm airflow. Those were the days when you started a race with a flag man starter, not a Christmas tree. 0000369626 00000 n Some of our popular builds are: Edelbrock Performer RPM Olds Edelbrock Performer RPM (Stock & Super Stock) Contact Us WebSpeedmaster CNC ported cylinder heads are machined on dedicated 4-axis and 5-axis CNC machining centers to ensure accuracy and cost effectiveness. Orlando Fl. Heads are ready to bolt on right out of the box, Made from high quality components, built to last and assembled in our California facility. Sure as heck not going to put that kind of money into my gravity laden iron turd heads. Bolt on a set of Speedmaster's fully assembled cylinder heads for instant power gains. Until then, my serious engines are sealed by this method. Traco Engineering, known at the time for extremely fast Indy cars and various sprint cars, utilized Mondello heads exclusively. Porting at Home by Michael Lufty, All Chevy Head Wizard Joe Mondello offers tricks of the trade. Race Recondition: $350 Complete recondition of cylinder heads with a Serdi cut valve job, surface mill, cleaning, inspection, re-assembly and new valve seals installed. Continuing use of the site implies consent. 0000001331 00000 n Multi-layer steel gaskets made by Cometic are the ultimate in combustion sealing. The Other 350s: Oldsmobile by Marlan Davis, Car Craft The Olds 350s design specs offer ample performance potential. The combustion chamber in the WPE Z head mimics the design of the SB2, as do the exhaust ports. Most Olds folks seem to prefer theC heads for their added performance and better flow. Includes full porting and polishing of the inside of the intake manifold. 0000369701 00000 n A Heads Shop has a 4.0 Star Rating from 4 reviewers. Virtually every set of Procomps I sell/install get 2.125 intakes because the bowls are more conducive to that valve size. For those looking to build an Olds small-block, Wise recommends using one of the mid-80s Olds diesel engine blocks, adding these cylinder heads, then utilizingthe Edelbrock 455 manifold on top to work with the raised port location. Using only high-grade components, our team of machinists and engineers with 40+ years experience get the job done with quick turnaround time and proven precision and assured quality control. From extreme weather events such as droughts, floods, and wildfires to the melting of polar ice caps and rising sea levels, it's clear that our planet is in trouble. The ultimate setup in cylinder sealing is the copper head gasket with a stainless O-ring embedded into the cylinder head, with a corresponding receiver groove machined in the block. Stage I: $300 Complements any of the above mentioned port jobs. USES OLDSMOBILE HARLAND SHARP ROCKERS OR COMPARABLE. Jiffy peat pellets are a popular choice for starting tomatoes, but they can also be used for peppers. SpeedmasterTM cylinder heads offer improved power throughout the rpm range for greater throttle response and top-end horsepower. Research, compare, and save listings, or contact sellers directly from 160 Oldsmobile models in Rahway, NJ. They feature double-pinned rotors (timed and clearanced after assembly), heavy duty front and rear bearing plates, and an intake manifold. I have reused them multiple times by carefully cleaning them and applying a very light layer of silicone over the entire gasket. These Hurst Olds D heads are some of the rarest Olds heads. My #6 heads probably flow close to the first numbers. I had those sitting here, and took a look at the chamber design and the shape. Although the ports have been raised, Wise says that the current Edelbrock intake for the 455 Oldsmobile engine bolts right on to the new cylinder head design. There are a number of head gaskets for the Oldsmobile engine. CNC combustion chambers offer superior control over flame travel and quench area. Includes full Okemos, MI 48864 PH: 616.499.6223 Contact Us! WebPorting an Oldsmobile Small Block Head 2,618 views Sep 9, 2021 57 Dislike Share Junk Dump 352 subscribers Watch me port an Oldsmobile small block head. When BTR performs this operation, the O-ring and receiver grooves are located off of the cylinder head and block dowel pins, and are machined on a Cincinnati CNC machine, which makes it easy to get perfect. All rights reserved. Terms|Privacy, Oldsmobile Motor Cylinder Head Guide | CarTech. WebWhile your engine is apart we will make suggestions on increasing horsepower and torque. hump in the exhaust port, clean up of the bowl area behind the valve seat, and tear Of all the factory iron heads I have played with, I have found the A heads to be the best in stock form. 455 Olds to Go by Marlan Davis, Car Craft Joe Mondello builds a 500-horse 455 thats the Torque of the town. The heads are offered in four different configurations, from a basic CNC-chamber, CNC intake/exhaust port design that flows 340 cfm on the companys Superflow SF600 flowbench all the way up to the big-dog 400-plus cfm max-effort cylinder head designed for all-out racing applications. CNC HEADS ARE AVAILABLE FULLY CNC PORTED AT AN ADDITIONAL COST. Speedmaster Cylinder Head parts have been assembled with the finest premium components to provide your engine with optimal airflow for maximum engine performance. cool, thanks for sharing. Now, Wise Performance Engineering has developed the Oldsmobile Z cylinder head, based on hundreds of hours of research and development time. Contact us for your application and pricing. Heads Shop is located at 4101 Bergen Turnpike in North Bergen, New Jersey 07047. 0.027" cometics, should be roughly 9.6-1. Speedmaster cylinder heads feature as-cast ports in both alloy and cast iron and are designed for entry-level street/strip performance applications operating in the idle-to-6500 rpm range. For the ultimate in Street Performance, look no further than the Outlaw Series. Very happy with the power made on the dyno with the Edelbrock Carbs. These heads solve all of those problems, Wise explains. 403 Olds Engine Building by Cam Benty, Popular Hot Rodding More tips on a 403 buildup. Yes, they have a ton of potential but need some work to get there obviously. Item is a matched pair of 1967-68-69 OldsmobileC code cylinder heads that have been stripped and prepped for a performance rebuild. Once cookies are enabled please refresh the current page. SpeedmasterTM kits bring together everything you need. Back in the mid to late-00s, Wise was racing his Olds in the NMCAs Pro Stock class using a set of warmed over old-school Batten cylinder heads, and he eventually came to the realization that if he wanted his combination to progress, he was going to have to do something about the induction system, as the Batten heads were, for lack of a better term, tapped out. Even at that small 46-cc level, the cylinder head seemed to have adequate deck thickness for the 640 hp that the particular engine produced. 75 mm throttle body, A 90 mm mass, 24 or 30 lb injectors and a chip and tune after. WebShop Oldsmobile vehicles in Rahway, NJ for sale at Cars.com. So remember: J is for junk. By raising everything up, we now have a cylinder head that flows just as good as the SB2 or R07 or anything else out there, explains Wise. One such individual is Brad Wise of Wise Performance Engineering. Wise based his Olds cylinder head development on the port shape of the venerable Chevrolet SB2 cylinder head design. WebSpecializing in Oldsmobile high performance 4509 Crichton Ln. They include almost everything you need to make serious horsepower. 23 0 obj << /Linearized 1 /O 25 /H [ 680 173 ] /L 1192708 /E 370195 /N 3 /T 1192130 >> endobj xref 23 13 0000000016 00000 n Get big-block heads, mill the deck surface so you can get the combustion chamber volume, and presto! Cam is an old grind, smaller base circle 234/244 .520 .542. Combustion Chamber, Exhaust and Intake Ports all fully CNC machined for better flow. The cylinder head works by allowing the air-fuel mixture to enter one valve and the exhaust gas to exit the other. Throttle response and power range from 1500 - 6500 RPM. They worked like a charm. The after numbers look close to what everyone says these head flow, interesting. This essentially blends all of the casting in the head for improved flow. Our race prepped heads use a 2.19 intake valve and are 244 cc runner. These specially designed heads are unported and feature extra-thick decks, under-sized intake and exhaust runners, and increased wall thickness that allow professional head porters and engine builders to perform custom CNC porting and other modifications. Joe Mondello began doing research & development work for Oldsmobile in 1968 and his ongoing commitment and dedication has merited him the name of Dr. Many variables will be included in your engines blueprinting process such as; type of camshaft, crankshaft, cylinder head porting and polishing, multi angle valve jobs, balancing, intake (port matching), pistons etc. Another method of blocking the exhaust crossover is to machine a pocket on the intake side and press fit or silicone a piece of metal in there. We use cookies to provide you with the best possible user experience. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are as essential for the working of basic functionalities of the website. DRILLED FOR 1/2" HEAD STUDS. Some of the key features include: Speedmaster CNC ported cylinder heads are machined on dedicated 4-axis and 5-axis CNC machining centers to ensure accuracy and cost effectiveness. WebOLDSMOBILE ALUMINUM HEADS 330,350,403,400,425,455. Stage III: See below for pricing Complements any head porting for maximum horsepower. COMPLETE READY TO BOLT ON. You do. Cookie Policy. Much like a Pontiac engine, WPE makes use of a valley tray with their design that is installed in the lifter valley to allow for intake installation and removal without affecting the cooling system. When performing the O-ring and receiver-groove operation, location of the O-ring and receiver groove is absolutely important. When were done they flow just a bit better than your best numbers and work really well. Assembly has been carried out at the Speedmasters TDS Department by the Head differential technician. From Street to Race ready performance, weve got it all covered, Weve done all the hard work for you. The stock cylinder head and other designs on the market are capable of flowing about 320 cfm, but above that, and above .650-inch lift, they become inefficient and the airflow becomes very turbulent because of the chamber design. You also have the option to opt-out of these cookies. This ensures that the valve free-drop and combustion-chamber depth is even. 0000001449 00000 n Mike is a great guy. Tomato Varieties: From Determinate to Indeterminate & Dark to Yellow Research Your Options Before Planting! A good option for ported heads. TORRANCE, CA Edelbrock has heard the requests from the Oldsmobile faithful and is responding by releasing a new and improved Performer RPM Cylinder Head for the Big Block Oldsmobile V8. When milling your cylinder heads, make sure that the machine shop machines the deck surface parallel to the valve-cover rail. If you have him do a full port job, you will not be disappointed. 7/16"CAN BE USED WITH NO ISSUES AND DRILLED FOR 3/8" PUSHRODS. 0000363215 00000 n And a very good head porter. O-rings can be installed in the head or the block, but preferably in the cylinder head. Coming along slowly.. it's a long winter. These castings are undesirable for performance use. Putting a higher flow head with 220cc runners on a relatively stock 350 would be going in the wrong direction. Joe Mondello and Racing are synonymous with each other. We use cookies to provide you with the best possible user experience. This car is called the Hefty HEMI and will compete in the NMCA - Nostalgia Super Stock class! I dont have time to figure out why some companys product failed, especially when there is something else I can get my hands on that performs reliably. Whether youre growing hot or sweet varieties, there are some important tips for success. Newer Post . It'll pass anything except a gas station :-). Filling the exhaust heat crossovers can never hurt. A head with 180 or 185cc intake runners will work well on a typical 350 Chevy street engine that makes 400 to 450 horsepower. no cnc job or significant port work? We also do 1,2,3,4,6,10, and 12 cylinder engine head work. In the early 1950s, before Joe was 17 years old, he had already ported & relieved more than 50 Ford flat head blocks for the finest engine builders of that era. Bernard Mondello, Joes son, grew up surrounded by the richest heritage in drag racing history. to grow your business. The 1972 W-30 H heads are probably the rarest; the 1970 W-30 F heads are not quite as rare. Our EFI systems provide excellent throttle response throughout the RPM range along with smooth engine operation. For those racers looking for a head with 500+hp potential, this is it! The most desirable small-block Olds cylinder heads are the number-6 and number-7 castings. Sweet, Growing Peppers in Your Garden: Tips, Hardening Off and Soil Mix, Growing peppers is a great way to spice up your garden. Flow testing: $100 Flow testing of one intake and exhaust - performed on our custom built bench at 28" of depression with flow sheet provided. BTR stocks the commonly used thicknesses, and they are available in .027-, .030-, .036-, .040-, .045-, .051-, .060-, .065-, .071-, .074-, and .120-inch sizes. Bolt on a set of fully assembled heads for instant power gains! Rated 5.00 out of 5 $ Add to cart $ 995.00 Add to cart; Home; Parts. As with any major engineering project, it wasnt so simple as just measuring the dimensions and transferring them over to a new casting. Stage III: $850 Our "strip" port job - the best bang for the buck. Starting with the right soil and conditions can make all the difference when it comes to germination and transplanting of pepper seedlings. Includes bowl port. 0000001493 00000 n Head Build Kits include the following: Intake Valves, Exhaust Valves, Valve Spring Retainers, Valve Locks, Valve Springs, Valve Stem Seals, and Valve Spring Locators. For the more serious street application, the SuperStreet Series boasts high quality intake and exhaust valves and valve springs suited for daily drivers and tough street machines. I have not found any considerable difference between the castings, with the exception of the J heads. 7Us.QW~?Y"6P-7Kv4z~hFseH.I>ZVb>U43T. EACH SET OF HEADS IS BUILT TO YOUR SPECIFIC ENGINE. The best head gasket in 98 percent of high-performance Oldsmobile applications is the Cometic MLS head gasket (multi-layer steel). ALL ROCKET RACING CYLINDER HEADS ARE BUILT PER CUSTOMER APPLICATION.PLEASE CALL TO ORDER. Performance cylinder heads enhance the airflow into your engine, giving you improved power and torque. The obsolete factory Oldsmobile big-block .017-inch-thick steel shim gasket worked very well in my 11:1-compression NHRA Stock Eliminator engine. As well as port matching. ROLLER CAMSHAFT ..Call for pricing, SOLID ROLLER CAMSHAFT Call for pricing, CNC PORTED CYLINDER HEADSCall for pricing. Just bolt on a set of complete heads for instant power - cos we've done all the hard work for you! Comes completely assembled with roller cam springs speced out Speedmaster El Rayo ignition system are designed for the enthusiast that is serious about performance but needs the small cap size due to space considerations when installed. Climate change is one of the most pressing issues of our time, and its effects can be seen all around us. The deck thickness and stiffness required on the cylinder heads has to be determined according to the amount of horsepower the engine can produce. Good middle of the road plug, not too expensive, high quality, regularly stocked everywhere. Rule Number 2: Let the air move the way it wants to, not the way you think it should. Joes first car was a 40 Ford coupe with a 303 c.i.d. This, Affordable Street Performance Applications, Select Performer Heads are 50-States Legal, Next-Level Street Performance Applications, High-Performance Street & Light Race Applications, Available in CNC Ported for Maximum HP/TQ, Raised Runners, Revised Chambers and Relocated Valves, Available with original Edelbrock script or block logo design, Available with raised-roof combustion chamber design for high-lift cams, Manufactured by the company that pioneered Flathead performance, The only heads designed specifically to accommodate almost any CNC port configuration, Hot Isostatic Pressing castings available for increased strength and density, Cast in the USA at Edelbrocks state-of-the-art foundry. Molding two designs into one proved more challenging than expected, but hard work and solid engineering principles made the Z head a reality. SPRINGS,LOCKS, RETAINERS, STUDS,GUIDEPLATES, AND VALVES. // Ported Item is a matched pair of 1967-68-69 OldsmobileC code cylinder heads that have been stripped and prepped for a performance rebuild. The perfect cylinder head, designed for entry-level that results in great driveability, power and economy. The famous C head is well known for being the best factory iron cylinder head to use, but I have not found that to be the case. Necessary cookies are absolutely essential for the website to function properly. Bulletproof Big Blocks by Chris Hemer, Popular Hot Rodding If your 455 Olds needs a booster shot, then its time to call The Doctor. EFVU(eufv7GWgw8HXhx)9IYiy*:JZjz m !1AQa"q2#BRbr3$4CS%cs5DT Speedmaster has taken the guesswork out of top-end component selection by actually placing the top end components together in complete kits. Includes cutting a back angle on the valves at a specific degree. If you need it to be more exact, you have to check multiple times, as the head is shaved. Project Murderous Overkill by Christian Hazel, JP Magazine The Mondello Monster. Not intended for street application.

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porting oldsmobile heads