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#7
11-25-2025, 06:29 PM
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RoundPort heads and IV cam with 1.65 rockers will spin past 6,000+ rpm
That's why most Ram4 cars have replacement engines. Guys would have been doing the same thing with their 455's if Pontiac put all the goodies with them. Which they should have, and had plans to, but didn't. Would have been a lot of warranty repairs even with better rods. 067 and 068 camshafts with stock springs were like built-in rev limiters |
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