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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: canesfan on June 11, 2011, 01:50:57 am

Title: 350 H.O. gmpp motor
Post by: canesfan on June 11, 2011, 01:50:57 am
Hi everyone! New to the board, been checking the site out for awhile now.
I have an 84 C10 with a 305 & a TH350 trans. Im going to replace the 305 with the GM 350 H.O. motor.
I plan on sticking with the TH350...for the time being anyways.
Just wondering what are some opinions of anyone who has any experience or dealings with this particular motor.
Thanks!
Title: Re: 350 H.O. gmpp motor
Post by: Lt.Del on June 11, 2011, 08:16:57 am
are you referring to this one?

http://www.gmhorsepower.com/350-HO-Turn-Key.php

92 octane that gives 330 hp 380 ft lbs torque?

You can probably do better, like a 400cid, or, in my case, I replaced a 350 with a 383 stroker which, too, is  a direct replacement w/ any sbc engine, since it is a 350 block (stroked w/ 400 crank and flexplate/ balancer).  You can get a decent 383 w/ warranty no core for around $2500-2800.   They are loaded with torque.
Title: Re: 350 H.O. gmpp motor
Post by: canesfan on June 11, 2011, 11:49:07 pm
Thanks Sgt. The Silverado is really just gonna be my weekend cruiser. I dont really wanna go 383 tho. But I have seen Blueprint's set up advertised for very good prices w/ decent warranties too. Their base 355 only as 310 hp tho. I could get 330 outta the 350 ho. Is it a must to run 92 octane in the 350ho? Bluprint's 375 & 385 hp 355's are an attractive choice for sure.
I read as long as I dont go over 400 hp that I should be able to keep the TH350. for now anyways.
Title: Re: 350 H.O. gmpp motor
Post by: Lt.Del on June 12, 2011, 12:15:04 am
the th350 should be just fine.  I have one behind my 383 stroker which has over 430 ft lbs of torque and i have a heavy foot often.  The 92 octane is what i read on the webpage, if that is the engine you are looking at.