Mopar developed a 528 Hemi Crate Engine that is able to crank out 610hp and 650 lb-ft of torque. The company recommends that for maximum performance, an 850/900 CFM Holley carburetor and 2-1/4" exhaust headers be used (not available through Mopar).
Specifications:
Built with all new components
Heavy-duty, Siamese-bore cast iron block with cross-bolted mains
Aluminum cylinder heads
Black cast aluminum valve covers
Breathers
Stainless steel 2.25" intake and 1.94" exhaust valves
Heavy duty single valve springs
Premium material valve stem seals
292-degree hydraulic camshaft (248-degree duration at .050") - 0.524/0.543" lift
Forged pistons - 4.50" bore, 10.25:1 C.R.
Aluminum single plane 4-bbl intake manifold
Forged steel crankshaft - 4.15" stroke
Precision double roller timing chain and sprockets
Chrome front cover
6 qt. rear sump oil pan (1970-71 B- and E-body styles)
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