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GoFast!
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263 Posts
Discussion Starter #1
I don't know if its a catalog misprint or what... the TC62T is like the evo RR56, the TC62H is like the evo RR62T, and the TC688 is like the RR62H but with more lift. Correct or not?
 

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Premium Member
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2,566 Posts
I believe the the way that is is the RR560 is 560 intake lift and 530 exhaust, the RR620T is similar to the Walters Power House cam except the nose is 8 degrees broader and 2 degrees less exhaust opening. The 620H is like a Walters Monster and the 688 is like the Andrews racing 688 with 4 degrees difference on the timing. Hope this helps
 

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GoFast!
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263 Posts
Discussion Starter #3
Thanks but that's not what I meant. Here are the cam specs:
 

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