Henchman #4 and Jack-Stand Racer #2
FBBO Gold Member
- Local time
- 7:00 AM
- Jun 12, 2012
- Reaction score
- NZ - just short of the South Pole
Did you read my Post #15 ?While YOU might not think the blow by excessive, it obviously is.....& is bad enough to collapse the intake gasket. There is nothing else that can cause the gasket to blow OUT.
I cracked a 440 valley pan once from a massive backfire caused by plug wires 5 & 7 being reversed.
I was told there is a lot of internal air pressure built up in a 440 when they are running hard, so any additional problem could lead to the pan going - it would be the weakest link.