Turbo John Racing Uncategorized All Aluminum 409ci SBC Build! Let’s talk to the machine shop!

All Aluminum 409ci SBC Build! Let’s talk to the machine shop!

Picking up the parts to start re-assembly of the all aluminum SBC! We are gaining about 45ci, going from a 3.34 stroke crank to a 3.75 stroke. 364 ci to 409 ci! This comes at a cost. Rod angle is now worse, the small 210cc 23 deg heads might get maxed out. Turbo back pressure may be an issue! But I think this is the correct move! Let’s go!!!!!


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