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- Small Block Ford 5.0l/5.8l Engines
- Legal for NHRA Super Stock
- Port Volume: 170cc/60cc
- 60cc Combustion Chamber
- Bare Head, Sold Individually
- Chamber Volume: 60cc
- Deck Height: 5/8"
- Intake Volume: 170cc
- Exhaust Port Volume: 60cc
- Valve Guides Included
- Heli-Coil inserts in the intake, exhaust and rocker stud thread holes
- Not machined for heat crossover or air injection
Aftermarket 289/302 heads including Brodix, Edelbrock, Ford Motorsport and World Products with 1/2' bolt hole diameters (block is 7/16' bolt hole), except 397-M-6049-P303 ('P' style head). Require 350-9680 inserts with 350-8552 head bolt or 350-9680 insert with 070-154-3601. If head studs are desired use 070-154-4005 (includes inserts).
Since founder Vic Edelbrock Sr. began building performance intake manifolds in 1938, Edelbrock has grown into one of the most trusted names in American high-performance parts, from carburetors and intake manifolds to cylinder heads, crate engines, and EFI systems. JEGS has spent decades supplying Edelbrock components to racers, engine builders, and street enthusiasts, backing this extensive lineup with in-house technical support, fast shipping, and a Price Match Guarantee so you can choose proven Edelbrock parts with confidence.
NHRA legal Performer RPM aluminum cylinder heads for Stock and Super Stock racing classes. These heads are similar to Edelbrock RPM cylinder heads, however the NHRA Legal heads do not have any machining or hand grinding done on the ports & chambers, except for the seat guide bores. Heads feature the NHRA logo on the ends for easy identification. Heads are sold individually. Made In The USA!
