Originally Posted by MoonshineMattK
Am I crazy or is 7000rpm with a stock 440 block going to crack the mains?





In over 20 years of running 8.60’s-10.40’s I cracked one block and that one was a 500 inch Stroker engine with 440source billet main caps. No concrete, no girdle. Now I did crack several 440 forged cranks and got to the point if I got 3 years out of them they went on my scrap pile

1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time