6066 (1960-1966) GMC Truck Club Bitcoin now accepted here! 
Pay Dues
Pay Dues or become a Site Supporter
 



Go Back   6066 (1960-1966) GMC Truck Club > 6066 GMC Truck Club Forum > GMC V6 and V12 Engines


GMC V6 and V12 Engines Engine repair and rebuilding

Reply
 
Thread Tools
  #11  
Old April 8th, 2022, 07:52 PM
Prowbar Prowbar is offline
Senior Member
 
Join Date: Dec 2020
Location: Friesland, the Netherlands
Truck: 1965 GMC 1500, 305E, SM420
Posts: 175
Rep Power: 63
Prowbar will become famous soon enoughProwbar will become famous soon enough
Default Re: It's at the Machine Shop

Quote:
Originally Posted by Walys60 View Post
Thanks for the tips...will definitely be keeping an eye out for options like that.

Sorry, I wasn't clear on the cost. Yeah, shoot, that may be the exact place he was looking at pistons! He mentioned $800 for custom made from someone. He was just saying that is the most expensive of a list of expensive, hard to find, parts for it and the total would end up (after all parts and machine work) around the $4500 range. No assembly but 'ready to assemble' price basically.
Man that sucks to hear. If you can find a replacement 305A, possibly from one of the forum members here, that'd be the way to go.
Reply With Quote
  #12  
Old April 9th, 2022, 12:34 AM
AZKen's Avatar
AZKen AZKen is offline
Senior Member
 
Join Date: Jul 2014
Location: AZ
Truck: 6066GMC
Posts: 1,397
Rep Power: 432
AZKen is a jewel in the roughAZKen is a jewel in the roughAZKen is a jewel in the roughAZKen is a jewel in the rough
Default Re: It's at the Machine Shop

It makes no sense to rebuild a GMC 305 V6. Fixing semi small issues is OK. These motors have virtually no parts left, no one knows anything about them and they are, for the present, available for a low price from non believers. Find a donor, hear it run and/or do a compression test. Check the oil. Keep your old one for the bolt on parts.

An easier option
If you like the truck and not worried about if it has a GMC 305A V6, Drop in a SBC. A SBC is a GM product. Lighter, faster, HEI, parts galore. That wouldn't hurt anything. Gives you the chance for any trans, manual or automatic with OD. Everything fits everything. Don't obsess over a GMC 305 V6. The truck itself is very nice to own.
Change course, be happy.

P.S. I didn't search your posts, so I don't know why you are rebuilding it?????????????

Last edited by AZKen; April 9th, 2022 at 12:44 AM.
Reply With Quote
  #13  
Old April 9th, 2022, 01:21 AM
FetchMeAPepsi's Avatar
FetchMeAPepsi FetchMeAPepsi is offline
-= Dues Paid =-
 
Join Date: Jan 2013
Location: Edmond, Ks
Truck: 1962 4x4 GMC CECILIA
Posts: 1,658
Rep Power: 478
FetchMeAPepsi will become famous soon enough
Default Re: It's at the Machine Shop

Quote:
Originally Posted by AZKen View Post

An easier option
If you like the truck and not worried about if it has a GMC 305A V6, Drop in a SBC. A SBC is a GM product. Lighter, faster, HEI, parts galore. That wouldn't hurt anything. Gives you the chance for any trans, manual or automatic with OD. Everything fits everything. Don't obsess over a GMC 305 V6.
'

__________________
Step by steps:

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Some people are like slinkys. Not worth much but funny as heck when pushed down stairs.
__________________
If the women don't find you handsome, they should at least find you handy.
Reply With Quote
  #14  
Old April 9th, 2022, 04:49 AM
AZKen's Avatar
AZKen AZKen is offline
Senior Member
 
Join Date: Jul 2014
Location: AZ
Truck: 6066GMC
Posts: 1,397
Rep Power: 432
AZKen is a jewel in the roughAZKen is a jewel in the roughAZKen is a jewel in the roughAZKen is a jewel in the rough
Default Re: It's at the Machine Shop

It's the second option man Trying to help the gentleman. Ease his mind and his wallet. A brainstorming session. Inflexibility killed the cat. I didn't say throw out the truck with the motor.
Waly mentioned it first.
Reply With Quote
  #15  
Old April 12th, 2022, 01:35 PM
GMCv6inND GMCv6inND is offline
-= Dues Paid =-
 
Join Date: Dec 2013
Location: Hatton, ND
Truck: 1945, 1955.2, 1955.2 tonner, 1959 3/4 ton, 1966 4x4, 1967 1/2 ton and a V12
Age: 58
Posts: 74
Rep Power: 72
GMCv6inND is on a distinguished road
Default Re: It's at the Machine Shop

If you end up replacing your 305, keep your eyes and ears open for a truck engine too (351 v6), it could be easier to find.
Itís a direct fit, although youíll have to swap your light truck parts (front of engine and bell housing). Then you have a running and larger engine. Iím currently running a 5000 series 351 in my half ton and have another 4000 spare.
Reply With Quote
  #16  
Old April 12th, 2022, 06:07 PM
Prowbar Prowbar is offline
Senior Member
 
Join Date: Dec 2020
Location: Friesland, the Netherlands
Truck: 1965 GMC 1500, 305E, SM420
Posts: 175
Rep Power: 63
Prowbar will become famous soon enoughProwbar will become famous soon enough
Default Re: It's at the Machine Shop

Quote:
Originally Posted by GMCv6inND View Post
If you end up replacing your 305, keep your eyes and ears open for a truck engine too (351 v6), it could be easier to find.
Itís a direct fit, although youíll have to swap your light truck parts (front of engine and bell housing). Then you have a running and larger engine. Iím currently running a 5000 series 351 in my half ton and have another 4000 spare.
Bet the 351 has some added 'git up and go' compared to the 305?
Reply With Quote
  #17  
Old April 15th, 2022, 10:07 PM
tbucketnut tbucketnut is offline
Senior Member
 
Join Date: Oct 2019
Location: GIG HARBOR, WA
Truck: 64 1/2 ton
Age: 63
Posts: 161
Rep Power: 70
tbucketnut will become famous soon enoughtbucketnut will become famous soon enough
Default Re: It's at the Machine Shop

Hang in there, it seems we are all having some issues. My block stock bore block cannot be used, found a crack, so my replacement block has already gone .030 over and it had a broken piston in it. I have some really nice .040 pistons/triple rings, waiting to hear if I can make it work, might need a sleeve myself. If it needs more than one sleeve, I might punt the football and sell all my bearings/pistons rings and gaskets. Sleeving the cylinder is pretty expensive these days.
Steve
__________________
Steve Stock
Gig Harbor, Wa

1953 Chevrolet 3100
261 cu inch, SM420
Finished Cab off restoration

1964 GMC 1000
305 V6, SM 420
Restoration is now started, still looking for an oldsmobile style power steering pump
Reply With Quote
  #18  
Old April 17th, 2022, 05:49 AM
AZKen's Avatar
AZKen AZKen is offline
Senior Member
 
Join Date: Jul 2014
Location: AZ
Truck: 6066GMC
Posts: 1,397
Rep Power: 432
AZKen is a jewel in the roughAZKen is a jewel in the roughAZKen is a jewel in the roughAZKen is a jewel in the rough
Default Re: It's at the Machine Shop

I rest my case.....................Fetch.
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Re: [6066 GMC] Machine Shop's Verdict Archiver Previous Forum Posts 0 May 31st, 2006 08:36 AM
Machine shop's got me in a bad way.... Archiver Previous Forum Posts 0 May 15th, 2006 01:02 AM
Re: [6066 GMC] Re: Machine Shop's Verdict Archiver Previous Forum Posts 0 April 29th, 2006 05:56 AM
Machine Shop's Verdict Archiver Previous Forum Posts 0 April 27th, 2006 01:55 AM
Re: Machine Shop's Verdict Archiver Previous Forum Posts 0 April 27th, 2006 01:04 AM


All times are GMT +1. The time now is 04:04 AM.


Powered by vBulletinģ Version 3.8.7
Copyright ©2000 - 2013, Jelsoft Enterprises Ltd 941656686078|1655607855|0
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2022 DragonByte Technologies Ltd.