Lifetime Premium Member
Join Date: Sep 1998
Location: Highland Village TX, USA
Re: Pump gas BBC 475 CID with AFR265/Straub GTA Hyd roller..
Why was a Dart block used for such a small big block? No good GM cores available?
I’m guessing the customer maybe already had pistons?
Otherwise, you are right. Why not go straight to a 4.500” bore and pick up displacement and power and still have plenty of room for rebuilds.
Naturally Aspriated 450 SBC - 915 HP / 714 lb-ft
1.36 - 60', 5.93 @ 116.7 MPH - 1/8th