01-06-2007, 10:47 AM

pjdutton

Junior Member

Join Date: Jan 2006

Posts: 16

WEAK CRANK WEBS ON 75 BLOCK

Have read about the 1975 and newer blocks being weaker than earlier ones.I have 2 blocks that need rebores,one is a 75 400 and the other is a 71 350.The 400 block is a 500557 casting and I am not sure which one to have the money spent on.I`m only looking to make around 350 flywheel horsepower,nothing special.Any advice would be helpful.

Reply With Quote

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules

Forum Jump

All times are GMT -4. The time now is 01:19 PM.

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

Menu

About Us