#11

12-17-2019, 12:31 PM

PAUL K

Ultimate Warrior

Join Date: Feb 2004

Location: Sugar Grove IL USA

Posts: 6,579

Quote:

Originally Posted by mgarblik

Our on track experience:

3 Stock block Pontiac 455's 1971-1973 vintage
5 billet straight caps. 1.5-2 seasons for each block @ 1100-1300 HP All three blocks broke in the same place up through the #2 main bearing oil feed from the cam bore to the main housing bore.

Which crank (pretty sure you've stated previously Pontiac cast) and rods did you guys use?

What kind of RPM did you turn?

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