Team Chevelle banner

Motor inspection questions, Rev Kit??

821 Views 5 Replies 4 Participants Last post by  TWC
We're disassembling my motor during the off season to inspect it as we're also installing AFR 335 heads. Two things came up that I'd like some input on.

There is evidence of metal transfer between the timing gear and the end of the cam. Everything was tight and there was no sign of movement but when we took the cam gear off there was an area maybe 3/8" x 1/8th x 30 thou. deep which spalled off of the back of the gear and attached to the end of the cam. The cam dowel was alittle loose also. we used ARP bolts and the timing gear is a cloyes billet piece. Anyone have ideas or experience with this ?

The cam shows some wear on three or four lobes. It is a comp roller cam w/ comp rollers. My machinest suggests using a rev kit to eliminate the little bit of tolerance caused by the lifter lash so the rollers stay in constant contact w/ the cam. Again any experience or comments on this suggestion??

Thanks for your input.
1 - 3 of 6 Posts
It is a Cloyes Quick Adjust Billet Timing set # 9-3710-A. Cloyes Timing cover w/ solid thrust bearing machined to proper tolerance.Cam is:
Comp # 11-808-9 Roller Cam Lift .782 intake / .72 Exhaust
Duration @ .05 289 Intake / 289 Exhaust
112 Degrees Lobe Separation Set @ 110 ICA
Comp CB Super Roller Lifters # 819-16
Crower 1.7 Roller Rockers
The dist. gear is bronze. I'll check it tonight. I don't think the timing set came with a torrington bearing.
Gofast, thanks for the tip. We'll check the fit on the new one for sure!!
i e-mailed you a stat list on the car. the new computer model shows 100 H.P. gain w/ the new heads. I went to the aluminium to save weight and AFR's seemed to be the best choice. The C.R. was @ 12.85 and we will be checking the new heads and calcing the new C.R. next week but it should be around 13 to 1 .
1 - 3 of 6 Posts