427 LS1 Bore and Stroke

Bliggida
02-28-2003, 04:09 AM
Whats the numbers for Bore and Stroke on a 427 LS1. Stock is 3.8 x 3.48. And I'm almost positive that both bore and stroke are going to have to be above 4.125 inches. Roughly, but in what exact combo are they?

Just like a SBC? - simply 4.125 x 4.125 = 427.43 cubic inches?

Ben, how's the 422 work out to be?

59apache
02-28-2003, 04:34 AM
i'm pretty sure the bore is 4.125

BartonekDragRacing
02-28-2003, 09:44 AM
bore is 4.125 and stroke is 4.00