So what’s the thinking on 915 gearbox kits for a/6 build these days Options

[Tdskip]

I’ve had a chance to go through some very useful past discussions, but as always win a couple years has gone by it’s worthwhile to revisit this topic The latest thinking and experiences. Looks like there’s a trade off between buying a pre-packaged kit versus trying to roll it all yourself, while expensive having someone else have done the brain damage does have a certain appeal to it.

Any thoughts or coaching out there on this?

I’m assuming if you go the route of a kit do you want to have the kit in hand when the gearbox servicing and flip is done, yes?

Thanks!

[speed metal army]

I have a flipped r&p 915.. no side shift conversion bits though.
For a smaller displacement engine say 2.7 and under is a 915 even necessary?

[Steve]

I have a flipped r&p 915.. no side shift conversion bits though.
For a smaller displacement engine say 2.7 and under is a 915 even necessary?

IMHO, I don’t think a 2.7 or stock 3.0 needs a 915, but don’t go crazy off the line with first gear. The 2.7 came out in 74 and in 74 the 915 gearbox was 7:31 r&p same as a 914-4. Compare the gear charts, it’s not much of a difference. My first six was a 2.7 with webers and headers. I thought the trans felt right. As soon as I upgraded to the 3.2 the gearing felt all wrong and I felt like I was shifting all the time and that 1st was worthless. So I switched to a 3.2 1986 915 gear box. Expensive, but it matches the motor and the driving experience on the street and freeway is night and day better.