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There are BBC racers over on DragRaceResults with 600+ on the GRP's.




And there are many that we watch being swept up as aluminum rocks off the race track that have less than 200 runs. A freind of mine runs T/S with a 632 Chevy and changes them after 150. I think broken aluminum rods cause more oil downs than anything else. Aluminum rods are why engine diapers were invented. Aluminum is Aluminum no matter whos name is on them. Some may be slightly better than others but still aluminum.

I am not a gambler. I would only use them in a quick 16 motor and limit them to 200 or less passes. A 4 round race with 3 qualifing passes it will take a couple years to get 200 passes. If you over rev the motor take them out and scrap them before they scrap your whole motor no matter how many runs are on them.

Herb Mcandless once told me if I take them out with 300 passes to give them to him and he would run them for another 300.

Alot of different opinions on this subject. If I had a $5000 Indy Max block I would try to protect my investment and go the conservative route.