400 main cap breakage

[krazyracer7688]

i have been running a 400 and tore it down a few weeks ago and had 1 cracked main cap and 1 broken how do i prevent this. I have heard of stud girdle kits what is the better of the aftermarket world .

[passing you]

Do the remaining caps fit loose?

Find out if the motors been detonating.

[passing you]

Hughes and mancini racing have good stud girdles.

[John Kunkel]

Welcome to the board.

There are several girdles available, the Chenoweth is among the better ones.

http://gearsandrears.com/girdle.html

Also check out these.

http://chucker54.stores.yahoo.net/400440blgi.html

[krazyracer7688]

what do u know about the kit sold by BCR products that is the one that we r looking at getting

[DartGT66]

What kind of engine and car do you have? How much power? I mean, I have never been able to break stock caps, but we have only been at 700 - 750 hp with them. The caps are cast, and there can be bad caps, or you may have problems elsewhere. Aluminum caps are a great way of making both the caps and the block survive. The BCR products cap & girdle kit is great, but in my opinion with aluminum caps the girdle isn't really needed.

[451Mopar]

Originally Posted by krazyracer7688

what do u know about the kit sold by BCR products that is the one that we r looking at getting

The BCR kit is very nice. I just built a 500" stroker 'B' engine using the BCR aluminum mains and girdle. I did have to bend up a internal oil pickup to clear the girdle stud and make up the thickness of the girdle.