92 5spd swap in my 70

[sir_talk_alot]

Is this smart to do? Im really wanting to get rid of the t350 and go standard. Just found a 92 truck 5 spd on craigslist for 150. Whats it take to swap? Can it handle 400hp sbc? Or should i buy it and save it for the 3/4 c20 i want for pulling stuff. I wanna make the truck more fun to drive
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[BossHogg69]

Search 'NV3500' (might also try MG5 or Getrag 5 speed) plenty of info on the forum already.

[SS Tim]

Put it towards the Cheyenne Super. That looks like it could be a good start.

[airdale94]

If it's the NV4500, I would put it into the C20. I don't think you would want a NV3500 in a 400hp street truck. I would go with a T5 or T56. The early GM 5spds are Gertrag. I heard you want to stay away from them. Especially the heavy duty ones.

[sir_talk_alot]

Its probably a 3500 and if it goes in my street truck itll be behind 400hp. If it goes in a c20 itll just replace the old 4spd as a work truck with overdrive gears as a dailydriver
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[airdale94]

I would do either a rear end swap, if you have the H052 you can do a 14bolt out of a 73-87 then you can run whatever gears you want. Or if you have the Dana you can probably get gears for those. The 14 bolt is what I want to do. You really can't beat those old truck 4-speeds. There fairly easy to rebuild. Novac has kits and instructions for them. I like my gears to run me about 2500 RPM at 65mph. 3.55 will put you a little over 2500. You can go clear down to 3.08 if you don't do alot of really heavy towing.

[stsalvage]

you must be young and live in a city with not that many car's on the road.here in Calif we welcome a 700R4 any day to spending 2 hours on the freeway in bumper to bumper traffic

[Gumby'sC20]

I'm currently working on a later model NV3500 (model year 93+). They're the single-rail 5 speeds, versus the earlier 4 rail units used until 1992. They're a bit more reliable than the 4 rail you're looking at on Craigslist, however from all I've read, they're fairly decent transmissions if you don't abuse them. For the power you're making, I'd say they're a little fragile for your application. I'm putting mine behind a 355 with an RV cam, Q-Jet, headers and Z28 valve springs (everything else is stock). Should be right on the brink of an NV3500s strength with that setup. I don't plan on abusing the truck though (burnouts, launches etc), so I don't think I'll break anything.

If you've got questions, let me know!

[sir_talk_alot]

Originally Posted by stsalvage

you must be young and live in a city with not that many car's on the road.here in Calif we welcome a 700R4 any day to spending 2 hours on the freeway in bumper to bumper traffic

Why would i want an automatic. And no i live way out in the country. If i put a 5spd in my short bed it would be for playing and autocross. This 5spd would be better to swap in a c20 for when i decide to go driving up to north arkansas with an atv in the bed and parts running.
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[BlackedOut67shorty]

Originally Posted by sir_talk_alot

Why would i want an automatic. And no i live way out in the country. If i put a 5spd in my short bed it would be for playing and autocross. This 5spd would be better to swap in a c20 for when i decide to go driving up to north arkansas with an atv in the bed and parts running.
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The stock five speed will not last under abuse... Spend the extra coin and get a tremic five or six speed
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