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I think 428’s were rated at 10.75 compression. Most likely run on 93 octane gas. One thing for sure because of the 428 stroke vs stroke in 455’s stroke…you definitely have a better chance of running it on 93 octane. Maybe rebuild the heads and just go with thicker head gaskets to lower the compression.
15 Ιουν 2016 · Over 144 pages, Rocky discusses all you need to know to build a powerful Pontiac engine using the latest aftermarket parts, and it even includes sample buildups from the pros.
This 428 will be turning heads and swooning damsels with its almighty 654.9 ft lbs of torque and 630 horses to help it run free on the road.With the March se...
High performance Pontiac 455, 428 and 400 blueprinted crate engines including stoker motors for traditional Pontiacs. Let us build you the engine you want in our full service shop.
21 Μαρ 2024 · Discover the specifications and maintenance tips for the legendary Pontiac 428 engine, a powerhouse of performance and reliability.
28 Απρ 2020 · Intended for full-size cars, Pontiac’s 428 has plenty of muscle car history, even if it took some aftermarket wrenching to make it so. GM had an internal policy that limited mid-size cars to engines no larger than 330 cubic inches.
14 Ιουν 2016 · To find 100 horses in a 421 H.O Tri-Power takes some tweaking. Check out the engine build on this Pontiac and the step-by-step in this hands-on article.
