Its part number 9-3145......its going on a ZZ4 shortblock with the LT4 hot cam. The cam sprocket hits the engine and I am not grinding at a new block.....WTF. Is that the right part number? Sckoggin Dickey is being an A S S and they wont return it for me. I have been on the phone with them for 2 days and each time they blow me off and say I am doing something wrong. WTF....... I had a Summit brand double roller on the stock L98 block and it worked fine. I tried it on the ZZ4 block and its fine. You can see a difference on the backspacing on the gear between the two sets. I thought Sckoggin ******** had a good rep........well I aint ordering from them again...I ordered the d a m n ZZ4 shortblock and another $500 worth of other stuff alone with the block and they are giving me s h i t about an $80 timing set.

 

Yea, thats the right part number. Does it look the same as the summit gear? Like the back where the cam is and all? Its possible that the wrong parts were in the box, maybe the cam gear isnt for a roller cam or something.

 

Thats pretty lame.. Who are these people??

-- Joe

 

I had the same problem. I had already ground the block where the 3 bosses stick out above the cam & then it pulled the cam too far forward. After returning the thing, I found out about a shim kit, don't know if it will work, I didn't try it.

 

so which ones do you guys use?

 

comp cams 2136. no problems

 

I use the Cloyes True Dual Roller on my 305. Got it from Jegs, PN: 220-9-3145.....(SB-Chevy With Factory Roller Cam 87-90)
When I was putting mine on I thought it was going to rub too. So I put some anti-seize on the heads of the cam retainer bolts to check for clearance. Sure enough it cleared just fine, there was no anti-seize on the sprocket.
Later,
-Ozzy

 

just how did you put it togeither and get it running. i put the same one on my tune port 350 in my 92 camaro hertiage edition vin 8 and all i got out of it was a f$$king bomb blowing up sound out of the A$$ and i have put time chains on before and this dang thing is really starting Pi$$ me off if it hurt the motor it only has org 77,856 on it can you help