Butler Ram Air Port CNC Ported Edelbrock Rd-Port, 72cc, Hyd. Roller Top End Package, BPI-TEP-RD-72HR-RAP-CNC

Butler Performance Top End Kits

Pump gas on a 389-400-428 engine and requires high octane for 350-455 + cu.in. engines or dish piston

Complete top end kit with almost everything you need to upgrade your normal Pontiac to a Butler High Performance Pontiac. These high HP combinations have been used in Butler Performance builds for many years and have powered some of the highest performing Pontiac engines in the world. We now offer these kits to take the guesswork out of piecing together a good combination that works well together. All these kits are actual build kits used in our shops. If its on here we use it in our own shop!!

BP/Edelbrock CNC Ported Round Port Custom Built Heads

Includes all of the features below from our popular CNC Ported Edelbrock Cylinder heads but with a new port design for 2026

With extensive digital modeling, CAD and CAM design, and flow testing of a newly designed port we are able to keep your RA4 intake port height and width but create 310-315cfm of flow. This allows the use of all the popular intakes that can be port matched to the RA4 port size. This is a big deal when it comes to intake heights for Shaker and hood clearances.

• Combustion chamber volume: 72cc
• Intake valve diameter: 2.11"
• Exhaust valve diameter: 1.77"
• Valve stem diameter: 11/32"
• Valve guides: Manganese bronze
• Deck thickness: 5/8"
• Valve Springs per application
• Rocker stud: 7/16"
• Guideplate: Hardened steel
• Pushrod diameter: 5/16"
• Valve angle: 14
• Exhaust port location: Stock Ram Air IV
• Spark plug fitment: 14mm x 3/4 reach, gasket seat

Intake Options

Hurricane 

The Hurricane was designed to meet the Street/Strip needs of a broad market segment – owners of Pontiacs who need an intake that will fit under their hood and that will feed ported cylinder heads. Port matched, Stock Height

Crosswind

Pontiac 326-455 Crosswind Intake Manifold, ALM Finish, Heat Cross-Over Deleted/Blocked
Based on the Edelbrock Performer RPM Intake (7156) Port matched, 7/8" Taller

Edelbrock 7156-CNC

Designed for 1965-79 street 326-455 c.i.d. Pontiac V8's (except Ram Air V and 265/301 V8's). Pontiac intake manifolds provide maximum high-rpm power while maintaining good throttle response for street. Recommended for high-performance street, strip and marine. Has clearance for HEI distributor. Will not fit under Trans Am Shaker hood without modifications. Port matched to our ported 315cfm heads.

Pontiac Edelbrock Performer RPM Intake
7/8" taller than stock

Edelbrock 5056-CNC

The Torker II manifold by Edelbrock is a superior high performance single plane intake for Pontiacs. This intake is good for Pontiacs with ported heads that demand high airflow. Especially good on 389, 400, and 428 engines. Port matched to our ported 315cfm heads. Stock Height

Cam Options

Ram Air 041- The Butler RA Series is an updated cam lobe designed and ground by COMP CAMS exclusively for Butler
Reproduced factory ID number 9794041 for 400 cu.in., 1969/1970 Ram Air IV factory 345/370hp
Lift with 1.5 ratio rockers: .507/.541
Lift with 1.65 ratio rockers: .557/.595
Duration: 232/241
Lobe Separation Angle: 113
Hyd. Roller

Ram Air 068-The Butler RA Series is an updated cam lobe designed and ground by COMP CAMS exclusively for Butler
Lift with 1.5 ratio rockers: .450/.450
Lift with 1.65 ratio rockers: .495/.495
Duration: 212/226
Lobe Separation Angle: 115
Hyd. Roller

Ram Air 744-The Butler RA Series is an updated cam lobe designed and ground by COMP CAMS exclusively for Butler
Lift with 1.5 ratio rockers: .450/.450
Lift with 1.65 ratio rockers: .495/.495
Duration: 224/236
Lobe Separation Angle: 115
Hyd. Roller

Lifters

• MorelBPI-5884R

Pontiac Retro-Fit Hydraulic Roller Lifters with updated Pontiac Oil Band Location (Set/16)

• Comp 85701

COMP Cams®Evolution Hydraulic Roller Lifters are the first lifters EVER created using the newly patented Hydraulic Cartridge Technology (HCT)! This revolutionary design offers the most reliable performance of any lifters in the aftermarket.
.842 diameter; 2.475 seat height, .125 travel / preload between .050" to .100"
*We Recommend using a .020 or .040 Restricted Pushrod*

• Johnson Lifter 2112OPR

Johnson Lifters, Pontiac Lifter Set, Hi-Perf Hydraulic Roller, 326-455, Set/16 **Hi-Perf lifters have .093" of Travel / Preload= 3/8 to ½ turn past zero lash**

Timing Chain

Pontiac Pro Billet Timing Set, Double Roller, Billet Gears, 9 Keyway Crank Sprocket w/ Seamed Chain

Available in standard length and -5 (.005" shorter if line bored)

Fasteners & Gaskets

ARP Pontiac Head Bolt Kit For Edelbrock RD-PORT/Performer Cylinder Heads

Intake Manifold Bolt Kit

5/16" Cork/Rubber Valve Cover Gaskets

RD-Port Reinforced Exhaust Gaskets

Pontiac Intake Gaskets - 340+ CNC Heads 1.20 X 2.560 (Set) Butler recommends these gaskets on Edelbrock 340cfm Ported Cylinder Heads

B.P.'s exclusive head gaskets, same as used in Butler Performance engines

Pushrods & Pushrod Checker

We include a pushrod length checking tool in each kit for measuring proper pushrod length. Because brands of lifters and rockers require different pushrod length.

Rockers

We offer many style rockers to choose from. Rockers that will work for these kits include stainless steel or aluminum from brands such as Comp, Scorpion, PRW, Crower, and more.

We recommend 1.5 ratio rockers so that pushrod slotting is not necessary.

Valley Pan & Distributor Gear

Hydraulic Roller Lifters require aftermarket valley pan such as the TPP-TP-041S

Requires polymer distributor gear such as BOP-PDG37 or BOP-PDG38

Compression Ratio Numbers for Reference (Compression ratio with Block, Head, and Stroke with -8cc FT)

Click Here for our compression calculator for other variations such as bore, gasket thickness, decking, and piston types and volumes