[coolreed]

I am building a 331 stroker right now and I purchased a new Rollmaster Timing Gear /Chain combo. While I was trying to install it the small gear would not fit onto the crankshaft (Scat 9000) nor would it fit the stock crankshaft. I measured both crankshaft diamenters at identical values. (I think it was 1.376 inches, if memory serves me correctly) Anyone ever had that same problem?

 

[mikes82GT]

What is the inside diameter of the gear?

 

[coolreed]

Purchased a Summit Billet Timing Gear/Chain setup and it fit perfectly. That tells me the Rollmaster Unit has a QA problem.

 

[tonys10sec306]

who makes rollmaster timing set?

 

[coolreed]

Rollmaster is made in Australia, supposed to be a good unit. I even talked to the owner/manufacturer. He says his timing chains/gears are the very best. All I know is that it would not fit my 302.