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Old November 17th, 2016, 06:26 PM
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Ed Snyder Ed Snyder is offline
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Location: Medford, Oregon
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Default Re: 1964 GMC "crustine" semi-build.

Quote:
If this is a 305e it should not have a pvc valve. Should be closed caps. The crank case takes air in though the breather at the back of block and vents through check valves in cylinder.
Through its years of production, the hole behind the left cylinder head of the V6 transitioned from a road draft tube to a filter canister to a casting plug. You're describing the "middle aged" V6.
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Ed Snyder
Medford, Oregon
1962 1000 Pickup 401M & Muncie 318 with overdrive
1962 K1000 Suburban 401M & SM420
1967 CM1500 pickup 351E & NP435
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