Main caps

[Don W.]

Told the machine shop to start on the block today so my question is: Any advantage to splayed 4 bolt caps as opposed to straight which would allow studs. Or do you just put studs in the center? Which works with the stock dipstick? Anything else I should know?

Thanks as always. :tup:

 

[ghettosled]

Re: Main caps

pro-gram splayed caps with arp stud kit.. only right way to do it.

 

[TYTILIDIE]

Re: Main caps

Make sure they align bore it if you go that route.

 

[Osmosis]

Re: Main caps

splay kits are stronger, also, make sure you have them line hone it and definately use a stud kit!

 

[bezerk]

Re: Main caps

with splayed ones, you have alot more body. straight ones will only weaken the bottem

 

[SY2455]

Re: Main caps

with splayed ones, you have alot more body. straight ones will only weaken the bottem

X2 on that. I heard that on the 4.3 if you use the straight ones they will crack the block in the area of the second bolt hole for the center caps..

 

[Don W.]

Re: Main caps

Thanks all. I wuz kinda thinkin' that the block was a bit thin where a second set of straight bolts would go. Yes it will be line bored and honed. Will call the shop tomorrow. Curiosity question: Does the notch where the cap sits get enlarged (widened) or does the larger cap sit up on top of the web?

 

[SY2455]

Re: Main caps

Curiosity question: Does the notch where the cap sits get enlarged (widened) or does the larger cap sit up on top of the web?

The larger cap outer two bolts sets on top of the web in all of them that I seen. You can see here if you click on the picture.

http://store.summitracing.com/partdetail.asp?part=MIL-11150&autoview=sku

 

[Don W.]

Re: Main caps

Thanks, I was just curious. I'll be chatting with the shop tomorrow.

 

[4C FED]

Re: Main caps

One caveat. You have to massage the cap where the dipstick tube enters the block & bend the tube to get it in. Not a big deal, just an FYI. It's not something you want to try to figure out once the motor is buttoned up & you've got it installed in the truck.

I had to grind a groove similar to the shape of the tube & grand a flat on the washer for that outer bolt.

 

[Don W.]

Re: Main caps

One caveat. You have to massage the cap where the dipstick tube enters the block & bend the tube to get it in. Not a big deal, just an FYI. It's not something you want to try to figure out once the motor is buttoned up & you've got it installed in the truck.

I had to grind a groove similar to the shape of the tube & grand a flat on the washer for that outer bolt.

Ah yes, I had head something about this. Thanks for the heads up.