Introduced in 1970, the Chevy 454 — affectionately known as ... The 454HO crate engine adds rectangular port cast-iron cylinder heads with 118cc combustion chambers to deliver an 8.75:1 ...

Today, the Chevrolet 454 and Pontiac 455 ... forged rods and pistons, round port cylinder heads, and a more aggressive camshaft with longer duration and higher lift. It also used a special ...

Our lowly Chevy 454 was built on a shoestring budget with a very mild Summit Racing hydraulic camshaft and only a reconditioning of the factory crankshaft and oval-port cylinder heads as pulled ...

Thunder Power's 4-valve cylinder head conversion for big-block Chevys bolts right onto production iron or aftermarket aluminum cylinder blocks. The heads even ... the big-block Chevy, for which ...

The Chevrolet Corvette first burned rubber on American streets in 1953 with a limited run of 300 units available in a single color, white. Since then, the Corvette has evolved into a 495 ...

With common-rail direct-injection, aluminum cylinder heads, six head bolts per cylinder, and turbocharging as standard equipment, it's the powerplant of choice for many hot-rodders, drag racers ...

I bought a ‘69 Camaro from a guy in Texas with an old Chevy crate engine in it called ... cast iron open chamber rectangular port cylinder heads with 2.19 intake and 1.88 exhaust valves ...