ANSWERS: 3
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In NASCAR, the manufacturers actually build the engines for their race cars (GM builds the Chevy engines, Ford builds Ford, etc.). However, these engines must meet a very strict list of specifications (Depending on the series).
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Manufacturers build Blocks Heads and Intakes for independant builders,They ie Roush,DEI,Hendricks,all have thier own engine programs and use thier own Nascar approved, ( Wink ) Parts
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No, unlike it's domestic counterparts, Toyota's never put a push-rod V8 between the fenders of any automobile. Whereas Chevrolet, has manufactured 90 million small block push-rods since 1955.
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