73-87chevytrucks.com
73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: Macaroni_Sackaroni on December 03, 2016, 09:16:22 pm
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would a 305 from a 72 c10 fit in my 75 c10 with a TH700R? are they both 2 bolt
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Are you sure it's a 305?
The stock "near 300cid" displacement V8 for a 72 CK series would be the 307 Chevy. GM stopped using the 307 Chevy in 73, and the 305 arrived in 76.
All of the 307 blocks were 2 bolt mains.
A 307 with 305 heads will pull away from a 305 pretty quick with exactly the same heads and cam. You can use the 059 casting L30 Vortec 305 heads on the 307 but you'll need a Vortec intake manifold.
The 305 is a small bore 350. The 3.736" 305 bore is smaller than the 307 3.875" bore so the 307 will breathe better.
The 307 is a stroked 283 using a 327 crank.
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the guy selling it says its a 305
heres the number GM355909
i looked into it and didnt find any 305 motor with that casting. but thats what the guy said so i made this post.
cl ad
http://sfbay.craigslist.org/eby/pts/5902772724.html
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Two smallblock engines used that casting. Without a picture of the stamped engine code number you can't be sure.
355909 1975 262 V8 2 bolt main
355909 1976-1979 305 V8 2 bolt main
"block has to be rebuilt had a blown head gasket" The seller knows there's more wrong with it than a blown headgasket.
$400 is way too much for an unknown condition 305 core even with a functional TH350.
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Ditto on the price analysis.. I wouldn't give $100 for the motor.
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Ditto on the price analysis.. I wouldn't give $100 for the motor.
thanks yeah i thinkk your right.