Stroking a 409 is as easy as using a 3.76 396/427 crank pr a 4.0 454 crank and turnino the mains and counterweights down(and snout to SBC size) 409s had a 4.3125 bore and a 3.5 stroke originally. Get a 470 ci motor pretty easily. Down side even the good heads only flow around 250-270 cfm, hard to feed them just like our Ponchos.
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1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune [email protected]
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed
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