Some-Guy Posted March 10, 2006 Share Posted March 10, 2006 I was at work today and I went outside to throw some **** into the dumpster and there was an engine sitting out back and I started looking at it was a 2 bolt main. A ford of somesort not sure what size though didnt look to closely but it got me thinking. Is it possible to to convert a 2 bolt to 4 bolt main? I was thinking that you could just buy the 4 bolt caps bolting them on then drilling and tap where the extra holes where. Is there any diffrence in the thickness of the web down there between the two? Looked as though there was enough room too do it anyone tried anything like this or heard of it before? Quote Link to comment Share on other sites More sharing options...
DavyZ Posted March 10, 2006 Share Posted March 10, 2006 This has been done on Chevy engines for sure---take a two bolt mains and drill splayed mains 4 bolt caps. The key is to have walls thick enough to do it. Also, the two bolt blocks for Chevys are pretty stout and can take a lot. I believe they are at least good to 450 hp, maybe more. Ah, my failing memory... I'm sure the Ford guys will weigh in. Davy Quote Link to comment Share on other sites More sharing options...
Alf Posted March 10, 2006 Share Posted March 10, 2006 people do this all the time. you can buy steel main caps from milodon and others which have splayed bolts (two outer bolts are not verticle, but angled). ive seen this many times with chevys and im sure you can do this for any engine if you have the caps and the abbility to do the machining. four bolt main caps are only really needed in racing engines, unless you have some type of power adder or extremely radical street engine. a SBC will handle around 500hp before four bolt main caps are needed. the owner of the machine shop where i get my machine work done sayed he had gone 9's on a two bolt 355. heres some more info from a familliar source http://www.crossedflags.com/nuke/html/modules.php?name=Forums&file=viewtopic&t=10491 Quote Link to comment Share on other sites More sharing options...
Some-Guy Posted March 10, 2006 Author Share Posted March 10, 2006 ahh cool iam going to attempt it but not angled there going to go straight thanks for the info guys! i kind of assumed it was possible would make sense! Quote Link to comment Share on other sites More sharing options...
Some-Guy Posted March 10, 2006 Author Share Posted March 10, 2006 ohh that link was great thanks for the info Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.