2nd Generation 1970-1981 This section is for info pertaining to 1970 to 1981 Firebirds.

301 turbo big end rod width

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Old Jun 16, 2020 | 10:00 AM
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Default 301 turbo big end rod width

Does anyone know the big end rod width on the 301 turbo? I am researching my build and am considering going to a 6.000" Chevy rod, but would like to know if it's the same width as that would add to machining costs if it's not and thus possibly not make the switch worthwhile. I'm guessing the original rods use a narrow bearing due to the rolled fillets on the crankshaft, but I don't know that for sure and you know what they say when you assume things, so maybe someone knows the answer to that question as well?
 
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