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Motor Work
#777291 June 08th 2021 2:42 pm
Joined: Jul 2019
Posts: 3,596
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Sir Sara Lee Big Cheesecake Long Hair Master
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Sir Sara Lee Big Cheesecake Long Hair Master
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Joined: Jul 2019
Posts: 3,596
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Getting ready to build my Original 350 in my 74' G10. Going to check out Action Cylinder Heads in Santee CA. Old school shop and referred by another shop local to my job.
Of course I want to talk to more than one shop and I remember a post by Scrojira ( I believe ) about a shop in San Marcos CA with a contact. Can't find it.

Looking to do a nice build like I had on my original 74' back in the day; however want it to be great cross country. Not really concerned with gas mileage.
I believe a 315 Horsepower with 335 pound-ft torque as in my 2013 Silverado would be good so I can invest in great suspension for a superior ride and of course later my paint & interior.

So much is on the net about a 700R vs Turbo350 trans. I had a mild build in my original 74'G10 and did fine on long trips per my memory. One Transmission shop that wants me to do the 700R
seemed negative on the 350 trans and said I wouldn't do well at freeway speeds and for the life of me I never remember that being an issue back in the day.

All advice is appreciated . Thanks SD

Re: Motor Work
SDMickey #777296 June 08th 2021 3:09 pm
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I had a TH400 in my ex-84 Vandura. It cruised great at highway speeds, but I suspect it had 3.08 gears. My 93 has the 4L60E (basically a 700R4 I think) and I jumped from 3.42 gears to 3.73 gears. Need that 4th gear.

Personally I'd go with the 700R4 and have it built according to the HP and rear gear you plan to go with. It's nice having that 4th gear.

Last edited by NateB; June 08th 2021 3:10 pm.

Nate Breece
--------------
1993 Chevy G20
2012 Hyundai Santa Fe
Re: Motor Work
SDMickey #777301 June 08th 2021 6:17 pm
Joined: Oct 2013
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I had a "built" 700r behind a 450 hp/440#ft/406 small block in a 3900 pound car with a 3.08 rear and that thing was a beast! Quick off the line and had long legs too. It's happy speed limit was about 85mph.

Go with a "built" 700r and you will not regret it.

Just my 2%


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