I have read on here both sides of the story. . . obviously 402T's have less duration and more lift, but some posts I've read swear that you can dial out the overlap from the 403's and that when you do - the will make more power than the 402t's.
Please don't post what you've heard - as I just did above and I'm sure since you are reading the same forum, you've heard the same things.

Anyone with experience or dyno sheets - please post on this - I am ready to finish my head and I want to know for SURE before I invest. NO backtracking on this project.


Thank you for your input

 

I was actually looking at these cams all day, because I can't decide which of the 2 I want to run in my Nitrous LS. Is there 'any' overlap with the 402T's?

 

Good question. . . I know there has to be less than on the 403's. . . the duration is just a tad more than stock.

But if all it takes is a little tuning on the cam angles to dial out the overlap of the 403's and you can net higher gains from them, that's what I'll do.

I hope someone with some experience in this chimes in.

 

I think they are going to leave us in the dark on this one.

 

bump...i wanna know

 

That makes 3 of us. . . there's got to be someone who's seen dyno's of both, or experienced both. I've read bits and pieces about it on here, but never a thread targeted at it 402t vs 403

 

make that 4, i've asked this question before and never got a response.

 

Hmmmmm, lots of people apparently want to know. . . I really would like to know before spending the $$$ - I mean, because if the 403's can have overlap dialed out with a couple slight cam gear adjustments then I'm all for it for more pony. Anyone?!?!

 

I'm off work! Finally - Bump

 

i wanna knoW too.. bump,bump, BumP

 

BUMP

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DragSource &raquo;</TD></TR><TR><TD CLASS="quote">That makes 3 of us. . . there's got to be someone who's seen dyno's of both, or experienced both. I've read bits and pieces about it on here, but never a thread targeted at it 402t vs 403</TD></TR></TABLE>

Actually there was a thread about this a long time ago. I had both on my old turbo'd DA. Untuned the 402T's made 11whp more then the 403's on my setup. Car felt better with the 402T's then with the 403's.

 

bump

 

bump for 10/1

 

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