Re: SO who came up with the GMC V6's???
Quote:
Originally Posted by bigblockv6
A new cam along with different count timing chain and sprockets were some of the changes, at some point up to 66 larger valves were used on the 305 engines as well. Medium duty trucks used 305 engines from their beginning in 1960 all the way up to the very last in 1974  |
Quote:
Originally Posted by bigblockv6
 I should have included this in my previous response. Yes 305E engines they were used in 3500, 4000 and 4500 series medium duty trucks. |
Quote:
Originally Posted by bigblockv6
Light duty trucks too were available with governors.
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Ah ok, yeah....I had to get a new dizzy cause the old was was frozen up....the governed vacuum pump was seized or something. Here's another question....any particular reason why the compression was made so low?
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"Excuse the rust I use my truck"
1964 GMC 1500 305E/sm420 4 barrel intake mod and dual exhaust.
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1964 Chevy C20 292/SM420
1966 Chevy C10 292 hotrod 6/TKO600
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