Big Block Valve Cover Bolt Question - The Supercar Registry

07-04-2010, 04:45 AM

olredalert olredalert is offline

Yenko Contributing Member

Join Date: Dec 2002

Location: Marine City, Mi.

Posts: 9,430

Thanks: 32,993

Thanked 4,571 Times in 1,934 Posts

Re: Big Block Valve Cover Bolt Question

-----Early are the 3/8ths and late are the 7/16ths. Both are quarter-twenty thread. Im not sure where the break is during the year but my cousins 450hp car that he bought new had the small heads and his car was serial# 700 even. My 425hp car was delivered in April and had the large head........Bill S

« Previous Thread | Next Thread »

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

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. The time now is 09:20 PM.

Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars.