Thread: gear drive ? ? Good or Bad

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There was a problem somewhere along the line with round track race cars braking timing chains, with the on again, off again of the accelerator. The gear drive solved some problems there, but on the st. its a little over kill. its your car put, put what you wont, its sure not going to hurt anything.

I think in summation, it comes down to what you want. If you can handle a little noise, plan on getting into it often and plan to keep the car around forever, go for the gear drive. If you just plan to use it as a street motor, dont think you'll mind tearing it down at about 125-150K and dont plan to reef on it too often, theres nothing wrong with a timing chain. Just dont get one of those @#$%^ing timing belts!

Per Edelbrock..........

Important Note: Accu-Drive® Gear Drives are not recommended for use above 7,000 rpm or on computer-controlled vehicles with knock sensors.

And we all know that timing chains will only spin what, 10,000 rpm, mabey more, we all must deside whats best for our motors depending on it's limitations.

Ive personally never had an issue with chain stretch when using a decent quality chain. its personal preferance, but I dont like noises in my engine that dont serve any purpose, like a gear drive whine.

If you want some valve train noise that is bearable, get mechanical lifters.

i shift my motor at 7500 and spin it up-to 10 gear drive works just fine alwasy has always will and they make quiet gear drives AND noisy ones.......scooter

I put a gear drive in my 350. I had what I considered low oil pressure and we had a drive ahead.
I had the cam swapped out for a .196/.204 and put in a Summit gear drive. I like the blower sound but in a van forget about it. The new cam and gear drive helped the oil pressure, and masked engine noise so we made it to La. I screwed up on clearances and so did the mechanic we had helping us. The gear drive ate the timing chain cover and was almost through the cover.
Would I use a gear drive again? Not in a van. I liked the difference in timing control, however maybe a new chain would have given the same result.

to me it doesnt sound like a blower, it sounds like something attempting to sound like one, but, not very good at it.
The cam change helped your oil pressure maybe, the gear drive had noting to do with it. a new chain wouldve taken care of your timing