Need advice on 2 bolt or 4 bolt main...
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Teching In
Joined: Jan 2004
Posts: 44
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From: Sterling, Virginia
Need advice on 2 bolt or 4 bolt main... Will a 2 bolt main be good enough for a 383 LTI w/ 400ish rear wheel horsepower? Possibly going to spray it w/ 125 or 150 shot. Or should I go with 4 bolt main??
-Nick-
-Nick-
Originally Posted by nhodge93
So should I just get a 2-bolt block and have it splayed??
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Launching!
Joined: Apr 2007
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From: At your moms house
Originally Posted by nhodge93
I found a guy wanting to sell a vette 4 bolt main block for $700.00, is this a fair price?? I was thinking of offering him $500.00, what do you think??
No, just get the 2-bolt block and do the 4-bolt splayed.
I just got a 496 4 bolt main block for $750
Originally Posted by Imnotfast
2bolt will handle what your looking to do. Put ARP studs and call it good.
I wouldnt run a 2 bolt in your case. My 383 was only 350ish to the ground(mustang dyno, so near 400), plus a 150 shot(450 something on the juice if I remember right), for one summer, maybe 10 or so bottles total, and my main bearings were very near spun. The caps were walking on the block as well. I would splay a 2bolt if I were you. It will only cost you a few hundred bucks in machining, so why not. Right now you plan on only 400 rwhp plus a small shot, but what happens when you get bored next year and would like a lot more power, then you're going to be redoing the bottom end anyways.
Originally Posted by lt197formula
True it will but the question is for how long... If you have the money you might as well have the block splayed now.
One of the guys is running a 2 bolt/arp studs with a 175 shot for the last 6 years. last june went thru his engine..and everything looked great.
Yes if you have the extra money to do a splayed bolt conversion then do it right and get them pinned. The pinning is a bigger help then the 4-bolt. Just very hard to pin a 2bolt.
