I am seeing all kinds of claims on legal hp being made anyone had a new 604 on the dyno with gm seals i know the new motors seem to make better power than my old one 2004
Yes it was a conversion on a 04 motor and i filed the burr maybe i didnt get it all it didnt break the retainer the lock wore thanks another lesson learned lol
I had a motor come apart what i found was the valve pulled through the lock. After inspecting we found it was all of the intakes doing it exaust were fine . Motor was never hot was running a 6700...
Selling an older grt that has been raced very little come as a roller less motor trans and headers
Winters quick change
Dyna superlights
Grt bearing birdcage
Aluim drive shaft
Butler set...
I just bout a 604 that is said to have low laps and never been apart is there away to tell by the seals or permatex the factory uses if it is original the glue is grey and looks like what the...