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PanelDeland · 01-14-2007, 03:03 PM

I see a lot of fairly knowledgable people looking for 4 bolt mains to build.I have to wonder why since if you are building for major power,you are better off to start with a 2 bolt and have it machined for splayed 4 bolt caps.The main reason given for this is that the webs of the 2 bolt are stronger and the splayed caps are even stronger than the factory 4 bolts.If someone were building a serious engine with the cost involved I would think buying the caps and having it machined would be a fairly simple and cheap way to get that strength.Also it seems like most of the aftermarket blocks use splayed 4 bolt mains also.
As to whether the engines are 2 bolt or 4 I have taken a couple of original to the truck apart,One 2 and one 4 that I recall.

01-14-2007, 03:03 PM	#12
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,992	Re: Is it true that ..... I see a lot of fairly knowledgable people looking for 4 bolt mains to build.I have to wonder why since if you are building for major power,you are better off to start with a 2 bolt and have it machined for splayed 4 bolt caps.The main reason given for this is that the webs of the 2 bolt are stronger and the splayed caps are even stronger than the factory 4 bolts.If someone were building a serious engine with the cost involved I would think buying the caps and having it machined would be a fairly simple and cheap way to get that strength.Also it seems like most of the aftermarket blocks use splayed 4 bolt mains also. As to whether the engines are 2 bolt or 4 I have taken a couple of original to the truck apart,One 2 and one 4 that I recall. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"