Dustin,
I've been through my 270/302 shop manual and don't see any reference to
"water nozzles" anywhere in the cylinder head section - what are you
referring to?
A 4 angle valve job refers to the taper cuts under the valve seats. It
gives a smoother, more gradual flow from the valve to the combustion
chamber. It's a normal procedure for any high performance engine.
The "GMC Super Power" emblems are a custom creation by Tom Langdon of
Stovebolt Engine Co. The basic "Super Power" emblem is actually a hood
emblem from a '50s White Freightliner diesel truck. The "GMC" logo was
snipped out of a GMC valve cover and added to the original design.
Jack / Winter Park FL
----- Original Message -----
From: <CLLLSLS@aol.com>
To: <oletrucks@autox.team.net>
Sent: Monday, January 24, 2000 11:59 PM
Subject: [oletrucks] Rebuilding GMC head Q's (water nozzles and things)
> Hi everyone,
>
> Gonna rebuild an open chamber small port (#*****477) GMC head and am
> preparing the head to go into the shop. I would like to know if I should
just
> do what the shop manual says and destroy the water nozzles in the process
of
> removing them or if these are hard to locate and I should just leave them
in
> or what? I think I read at Chevytrucks.org or somewhere that I should
spend
> the extra bucks and get a 4-angle valve job? What does this gain me? This
> head is going on a turbocharged, injected 270. It's getting hardened
seats,
> stainless valves, and new guides.
>
> On a side note, where can I get those cover sets that say "GMC Super
Power"
> on them? Patricks doesn't have 'em, who would?
>
> Thanks a million,
>
> Dustin
> 50 & 53 GMC 1/2 tons
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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