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Author Topic:   350 engine block
Dirt Roller

Total posts: 12
posted September 17, 2004 06:44 AM  
I am looking to get a different 350 block for my 383 motor due to a cracked cylinder. Is there a particular casting number that is more suited for race engines?

Also, what would you reccommend for the bottom end? get a 2 bolt and put splayed caps on? Get a 4 bolt and put steel caps on? 4 bolt w/ Cast caps? etc. It appears the caps I have now are the 4 bolt cast, but that makes me a little nervous with a near 600 hp engine turning 7200 rpm or so.

Is it worthwhile to get a Dart or GM performance block and if so, is there a certain one of these you would reccomend? thanks.

Dirt Maniac

Total posts: 128
posted September 17, 2004 02:29 PM  
When I built our last 383, the casting number on the block was 010...that was the last three numbers. I didnt have any problems ours puts out a little over 600hp and spins anywhere from 7400-7600 depending on the track. If money was no object, personaly I would run the dart or new gm blocks just due to the fact that they are brand new and you know that they havent been through the ringers. But until we happen to land uncle moneybags as a sponsor, we will just use the old blocks thats my two cents

Dirt Maniac

Total posts: 128
posted September 17, 2004 02:31 PM  
Oh yea, i forgot...our block was a 2bolt, and we had it changed to a splayed 4 bolt. I dont know if it helped a whole lot, but it is still running like a top

Dirt Freak

Total posts: 446
posted September 19, 2004 10:55 AM  
010 blocks came both 2 and 4 bolt configurations. A 2 bolt with splayed caps will be stronger.

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