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Rd-Port Cylinder Heads
Edelbrock Performer RPM heads produce outstanding horsepower with excellent low speed torque and throttle response. Designed for 1965-79 389-455 c.i.d. Pontiac engines, these heads are patterned after the 1969 -70 Ram Air IV Pontiac cylinder head. Two styles are available: a street legal 87cc combustion chamber version for low compression applications using 92 actane fuel and a 72cc chamber version for higher compression, racing applications. Both heads have Ram Air IV exhaust port flanges.
NOTE:
" When using a Pontiac 350 block, 1.66" exhaust valves are required. Also, the 62-64 will require 65 and up or aftermarket intake and 67 and up pistons with valve pockets for 14-degree heads. The top of each cylinder bore may need additional notching to clear higher lift cams- this must be checked before installation "
**Picture below shows the exhaust port shape of Edelbrock RPM heads that require ROUND PORT headers**
The Butler Built start with Edelbrock castings and then taken through the Butler Process for machining and building the heads
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Shop Pontiac Cylinder Heads to Boost Flow Torque!
Performance Upgrades for Pontiac Cylinder Heads
Upgrade your engine with precision-machined Pontiac cylinder heads designed to improve airflow, combustion efficiency, reliability, and durability. These heads pair seamlessly with custom hydraulic solid roller cams to deliver stronger throttle response and consistent valve control under load. Built for racers and restorers who demand measurable gains, the design focuses on optimized port geometry and valve seating to reduce detonation risk and extend service intervals. So you can expect improved torque at low RPM and easier tuning for performance builds.
Why Choose These Cylinder Heads
Pontiac cylinder heads deliver real results: better flow, increased horsepower, improved torque, and longer life, backed by quality machining and material selection. Butler Performance supports each build with technical guidance, clear fitment options, fast shipping, and warranty support so you get the right parts quickly. These heads simplify installation and tuning while minimizing rework for direct swaps or more complex jobs.
Ready to unlock more power and reliability? Contact us now to order your Pontiac cylinder heads or get expert support.
Frequently Asked Questions
What makes these Pontiac cylinder heads different?
Precision porting improves airflow, durability, fitment, and performance. They balance power gains with long-term reliability for street and track use.
Will they fit my engine without major modification?
Many applications are direct bolt on with stock manifolds and valvetrain, while some builds need minor machining or matched components. Verify bore size and head gasket specs before ordering. If you need help selecting the right head, reach out to one of our experts for help.
Can I use them with aftermarket camshafts?
Yes, they work with hydraulic and solid roller cams when valvetrain geometry is set correctly.
Do these heads require special tuning?
A proper tune optimizes air-fuel ratio, ignition timing, idle quality, and rev control for best results. Tuning reduces detonation risk and unlocks peak horsepower, but the exact kind of tuning you need varies based on the head, so reach out to our pros if you have questions.
What support is available after purchase?
Our technical help covers fitment, torque specs, recommended parts, and warranty guidance, plus shipping options to get you back on the road quickly.