Originally Posted by n20mstr
Originally Posted by Dragula
We run a lot of them with girdles. We believe they help. I can say, I don't see how they can't hurt. Think about it, you stud the main caps and the tie them into a girdle that bolts to the oil pan rail. How can it not help? We have been running over 800hp with this setup for years. Bearings usually look really good when we do check ups. Only time they don't is usually with a repaired crank or where we have had other issues.


Do the caps show evidence of moving ? My stock block showed a lot of movement (no girdle stock caps with just studs )


Yes...We still see some cap walk. We usually do an off season check, and we will generally see some light cap walk. We do race all these, and we run the timing near or at the max they will take.

'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk