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- - SM465 behind 350 RPM ?? (https://67-72chevytrucks.com/vboard/showthread.php?t=396737)

Driveway Dreams

04-09-2010 11:46 PM

SM465 behind 350 RPM ??

Currently I have the wonderful (for a 4x4 :rolleyes:) SM465 behind a 350 that I know is sloppy. When I have it in neutral or have the clutch in, I can rev the motor nicely. I can blip it to over 4g with no issue. But while driving I can not, in any gear, get it to rev past about 3g. I am replacing the motor soon. And have the intent to swap to an NV3500 tranny in due time. But I wonder why the RPM differences?
Is it the motor?
Is it just the gearing of the dang tranny?

Driveway Dreams

04-10-2010 10:58 PM

Re: SM465 behind 350 RPM ??

Distributor cause this? I know it needs help too.

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