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GM High Performance Racing Engine Product Line |
RMP Powertrain is pleased to offer a new addition to the crate motor line-up, with its General Motors Factory Stock Circle Track Crate Motors 350 HP-88958602 and 400 HP - 88958604.
You will be pleased with the quality & durability that this Factory Sealed motor offers, complete with its four-bolt main block,, nodular iron crankshaft, ,PM connecting rods, ,cast aluminum pistons, ,hydraulic flat tappet cam and of course the famous Vortec cast iron cylinder heads. GM finishes it off with a high-rise dual plane intake,, a HEI distributor,, Circle Track valve covers with breathers, ,and an 8-quart circle track oil pan assembly. The 350HP was derived from a Superflow Dyno using a 4-barrel 650cfm Holley carburetor.
And The ultimate beast!
The ZZ572/720R is rated at 720 horsepower at 6250 rpm and 685 lb.-ft. of gut-wrenching torque at 4500 rpm. The short block is built with a 4340 forged steel crankshaft, shot-peened forged steel rods, forged aluminum pistons with full-floating wrist pins, stiff dual valve springs, and a louvered oiling windage tray. Our Deluxe ZZ572/720R ships with a 1090-cfm Demon four-barrel carburetor, tall-deck single-plane intake manifold, HEI distributor, aluminum short-style water pump, and 8 mm spark plug wires. Distinctive "572" cast aluminum valve covers complete the package. All you need is a GM Performance Parts lightweight starter to fire it up!
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