BUILD THREAD 84 Hurst Olds - TechG8

techg8

techg8

Master Mechanic
Feb 29, 2012
451
63
replaced the 6 1.5" freeze plugs with new brass. coated the edges with rtv. should seal up nice.

whats a good set of header gaskets for this 307? Looks like the papery ones in use previously had some pretty significant leaks at the center ports
 
  • Like
Reactions: DRIVEN
olds307 and 403

olds307 and 403

Comic Book Super Hero
Oct 14, 2008
4,514
113
Melville,Saskatchewan
olds307 and 403

olds307 and 403

Comic Book Super Hero
Oct 14, 2008
4,514
113
Melville,Saskatchewan
The picture isn't right but those should be right according applications.
 
TURNA

TURNA

Geezer
Jul 24, 2009
7,779
113
Socialist NY
olds307 and 403

olds307 and 403

Comic Book Super Hero
Oct 14, 2008
4,514
113
Melville,Saskatchewan
They have the same bolt pattern. His 5A heads have similar sized ports with a very recessed center crossover port. Your 7A heads have smaller round ports but I believe regular gaskets will seal.
 
DRIVEN

DRIVEN

Geezer
Apr 25, 2009
5,799
113
Owyhee County
Wow! Just binged the whole thread. Very cool car.
Sounds like you're putting it back together with headers. I vote for Thortons and dual exhaust.
 
Thread starter Similar threads Forum Replies Date
olds307 and 403 G-Body Build Threads 27

Please support GBodyForum Sponsors

Classic Truck ConsolesDixie Restoration DepotMike's MontesP-S-TSouthside Machine PerformanceUMI Performance

contact[email protected]for info on becoming a sponsor