what do u guys think about a gear drive rather than the double roller timing chain??? ive heard the gear driver is more accurate but u really cant rev them high?? is that true?? im thinking about gettin one for my 87 ttop gt since the engine is out already. anything will help thanks

 

They make noise

 

gear drives are great, but im not about to put one on my car. there is no stretch like any chain, no slop, very accurate, but very noisy, their loud

reason im leaving the double roller on my car, and not going to a gear drive, is price

 

so would it be a good or bad investment

 

you can buy quiet ones you dont have to buy the noisy ones

 

Even the quiet gear drives are noisy. We recently used one and it is coming out this winter. Also Reher-Morrison found through a series of dyno comparisons that they lost over 15 hp using a gear drive on a BBC. I can't imagine it would be any different for a SBF. I say stay away from them.

 

They also can transfer unwanted harmonics to the crank. They are out-dated technology, use a good double roller or a belt drive if have some coin.

 

if they have the coin is right. i saw one not to long ago they go for around 700 bucks for like 10 extra hp. is there any other benfit from it?

 

there is no reason NOT to run a double roller chain... i mean hell.. you can buy them with gears for $25