Looking for new billet main caps for my 340 block

[Texas Red]

So sometime back I got a 1969 cast block 340 through some trades etc... Long story short I took it to
my local machine shop for line bore... general machining to get the dreaded news that the first 3 main
caps are not even close telling me someone played swith-a- roo no telling what or when.

Instead of running all over the place like a chicken with his head cut off I need to turn to the very best
source available. Does any one know where reproduced billet main caps can be bought for replacements?
Please advise & thanks for the info in advance.
Signed ... In need in South Texas. Texas Red ..........Gary

 

[Professor Fate]

Currently not in stock with these guys, could call to check availability but at least it gives you some part numbers to check around for:
Center Main Caps - SBM 2-BOLT
SBM 340 Front Main Cap 2-BOLT

 

[Garrett Ellison]

Milodon 11300 Main Cap Kit - 318 / 340

 

[Sterling]

I have gotten some Mopar Performance Main Caps from a member here, Rocket. I think that they are caps for the R Blocks, and are 4 bolt. They are not billet, but seem to be a better casting. Rocket had pictures of the extra bolt holes being milled off for 2 bolt use.

 

[Texas Red]

Thanks for the replies..... This is just another example of why this site is so great. One brother
reaching out to help another in need. Texas Red says Thanks very much I will buy you lunch sometime
if our paths cross..... Gary

 

[grimreaper]

Ken at Pro-Gram retired but the business sold to:
Billetspeedworks.com

info@billetspeedworks.com

330-899-7157

3000 South 1st Street, Clinton, OH 44216

 

[ValiantS]

So sometime back I got a 1969 cast block 340 through some trades etc... Long story short I took it to
my local machine shop for line bore... general machining to get the dreaded news that the first 3 main
caps are not even close telling me someone played swith-a- roo no telling what or when.

Instead of running all over the place like a chicken with his head cut off I need to turn to the very best
source available. Does any one know where reproduced billet main caps can be bought for replacements?
Please advise & thanks for the info in advance.
Signed ... In need in South Texas. Texas Red ..........Gary

As said I'm pretty sure "Rocket" has them ...he is a member here and they are nodular iron. You'll break the block before you break these.

 

[Newbomb Turk]

Call Kent Ritter and buy caps from him. I would never convert a passenger car block to 4 bolts. It weakens the block.

If you can’t find his number PM me and I’ll give it to you.

 

[Texas Red]

Professor, Talked to Raymond yesterday at Race Car Engineering .....He states that all their main caps came from a shop out of Ohio
called "Program Engineering" whom they just quit hearing from several years back. His only guess is they closed up for unknown reasons to them.
Raymond also stated that while they still have a few various new main caps for some engines they do not have a different supplier in Program Engineering's place.
News it seems we get all the time. My belief is a person needs to keep digging cause you aint dead yet. I read something once that stated
"You only fail when you quit trying" ... Appreciate your help sir along with others. Texas Red

 

[PRH]

Billet Speedworks Acquires Billet Main Caps Company

Doesn’t look like they offer caps for SBM:

 

[grimreaper]

Even though Billet Speedworks doesn't show them on their website I would give them a call. I sent a friend to them and he got a set after they bought Ken out. That may have just been left over inventory but it would certainly be worth a phone call.

 

[ValiantRacing]

Even though Billet Speedworks doesn't show them on their website I would give them a call. I sent a friend to them and he got a set after they bought Ken out. That may have just been left over inventory but it would certainly be worth a phone call.

I have a friend that got a new rear main cap from them in the last year or so.