73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: murraygmc on February 21, 2009, 02:33:27 pm

Title: power plant swap
Post by: murraygmc on February 21, 2009, 02:33:27 pm

OK iv got a 86 4.3  and I'm thinking of putting a 79 350 in so what are the things different i need to know   will the fly wheel inter change  motor Mount  change  and any thing else i might Need to know  how will the exhaust  come out ? just like the 4.3   thanks   it is going in to a 85 4x4  is the 79 350 a 4 bolt main

Title: Re: power plant swap
Post by: Captkaos on February 22, 2009, 09:09:02 am

Everything on the motor will swap out, but the I think the motor mounts are different

Title: Re: power plant swap
Post by: Blazin on February 22, 2009, 09:11:52 am

Fly wheel on the 4.3 is a one piece isn't it. 79 would be a two piece?

Title: Re: power plant swap
Post by: Captkaos on February 22, 2009, 09:15:06 am

Hmmm I think your right Blazin.

Title: Re: power plant swap
Post by: hilton850 on February 22, 2009, 04:19:49 pm

is the 4.3 internal balance or external balance? 
Blazin, do you mean external balance when you say 2 piece flywheel?

Title: Re: power plant swap
Post by: VileZambonie on February 22, 2009, 07:03:11 pm

He means 2 piece rear main seal not 2 piece flywheel

Title: Re: power plant swap
Post by: murraygmc on February 23, 2009, 11:07:51 am

ok thanks  guyes hear is one thing tho the guy wants bothe my 4.3 mortors an iv got a 389 out of a 66 catlina with a 2 speed powerglide behind it  most of it is junk but the power glide works fine any one know what the power glide is worth????

Title: Re: power plant swap
Post by: bigkountry on February 25, 2009, 10:33:44 am

I sold a glide last year that had been outside for two years. Turned it over, dumped the water out of it and sold it to a guy for $100. He watched me do all of this but wanted it anyways.

Look for a speed shop or dragstrip/swapmeet to unload the glide. They are only good for resto or racing really.

Title: Re: power plant swap
Post by: joesgarage71 on February 25, 2009, 10:58:48 am

Theres guys out there looking for those 389's don't junk it! Find the Pontiac sites and sell it.

Title: Re: power plant swap
Post by: joesgarage71 on March 05, 2009, 08:45:41 am

Quote from: joesgarage71 on February 25, 2009, 10:58:48 am

Theres guys out there looking for those 389's don't junk it! Find the Pontiac sites and sell it.

 Hey a guy looking for a 389
http://www.hotrodders.com/ads/showproduct.php?product=5899&sort=1&cat=12&page=1

 You changed your first post, very tricky ::)