Lifetime Premium Member
Join Date: Sep 1998
Location: Mahomet, Illinois, USA
Re: 454 to 496: Which block? 1pc vs. 2pc main seal?
I bought my Eagle stroker kit from Jegs it was suppossed to be balanced but I never double checked. It also had the clearance issue at the bottom of a few bores. I would now probably lean towards Scat. They also have cast crank stuff for lower priced 496s. If you are not spraying it or really pushing the power limits of one. If I had not had a 454 all ready I would have gone with a Gen VI motor that a local yard had for $700. It had the stock Vortec heads but it would have had the roller lifter set up as well and being a 4 bolt block. Not that my 2 bolt studded block isn't fine. Check with local machine shops for stuff. I have gotten a few good deals from the local shop on stuff he kept that people never paid for or didn't use. I found that Gen VI engine on http://car-part.com/
I am also in the middle of swapping in a hyd roller cam into my Mark IV block and it is not cheap. But always wanted to do it so what the heck.
1966 Chevelle Malibu 489, 870 Holley, Edelbrock RPM Air Gap, aluminum heads Patriot 315, TH 400 Gearvendors OD/UD, 12" disks up front and 9 inch with 3.50s.
1966 Chevelle wagon, 408 SB, 3.73 12 bolt, 700R4, 12" discs front 10" rear.
1968 GMC 3 door Suburban C10 454 4L80E EFI
All for sale.