red L98

Hey guys ,

i cant recall but what size harmonic damper can we fit in an early C4 engine compartment without notching the cross member ? I ran a Small 6.325" ATI on my past setups without any issues and i just upgraded to 7. 074" .. Will i run into fitment issue ?

Thanks

blackozvet

Im pretty sure its about 7.5" or thereabouts,
i have about .75" clearance under my 6.6" (i can poke my finger between them)

red L98

Hope it clears .. hate to notch and bang on it after the fresh coat of paint ..

Sleazy Rider

I just installed my ati hub the other night for a 7.5" damper which is supposed to be the stock diameter damper. Biggest problem was installing it, length of installers vs depth of counter bore of the hub and ended up destroying a china installer that was in my tool box for an emergency. Then there was the .0009-.0012 press fit that had to be honed out.

WW7

Why do you want to run a larger balancer??? Wouldn't it be less hassle to just use the 6.750 diameter balancer to start with , then you know you won't have problems......Is there an advantage to running a larger balancer that I don't know about.???......WW
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red L98

1400 horsepower that's why .. That's the damper that ATI told be to go with for my application so that what i bought ..

WW7

..Then it's time to break out the big hammer, or maybe you can get away with a grinder..........WW

LongBeachC4

I don't see anything wrong with a smaller balancer except for timing marks. Anyone try a fluid damper while were on the subject. I have an L98 and am looking at doing the chain, gears, water pump and balancer since I have a leaking front seal.