View Single Post
Old 07-08-2018, 02:05 PM   #8
72K5CSTDarkOlive
Registered User
 
72K5CSTDarkOlive's Avatar
 
Join Date: Aug 2013
Location: Central Coast, CA
Posts: 774
Re: 427 SBC & 4L80e build

Quote:
Originally Posted by kwmech View Post
My thought was to get the factory GM stroker crank which comes in at a 3.8 and have the block bore at 4.080. This gives you a 392 cu engine with more than enough room for an over bore later if needed. I was thinking about using the Dart heads also. Have you given any thought to the rod length and compression?
We'll be using 6" connecting rods and comp will be around 10.5:1. I believe there is either .030 or .060 left in the bore after taking it to 4.125. A 4.155 would get you to 434.
__________________
My Build Thread 72 K5 http://67-72chevytrucks.com/vboard/s...d.php?t=628612

Build version 2.0: 72 K5
6.0 LQ9, 4L80e, NP205
http://67-72chevytrucks.com/vboard/s...d.php?t=793192
____________________________________________
1972 CST K5 Blazer Dark Olive
72K5CSTDarkOlive is offline   Reply With Quote