Engine swap
Ok guys I got a k20 70’ chev with a tired ol 350. Swapping her out for somethin newer. What would be best to put in this girl. I’ve heard the LS engines are the way to go. Any suggestions are much appreciated. Thanks in advance.
Posted via Mobile Device |
Re: Engine swap
Quote:
|
Re: Engine swap
i am always going to vote for the package crate deal (warranty), and 383 or bigger. but it all depends on your budget and what you are looking for.
if you want to go to a local machine shop and have them build your 350 at least stroke it out to get a good torque curve for the truck. the LS route is a good option as well but the initial investment it still pricy to do the swap even with a junkyard donor engine, |
Re: Engine swap
What's your budget? Thats's the question . A lot of us "old guys" stick with what it came with , It's what we grew up with . If you want to drop an engine in and close the hood for the next year go LS . :lol:
|
Re: Engine swap
I could build a full on drag engine for what an stock LS swap would cost. Do a cost analysis to see which way you can afford to go.
|
Re: Engine swap
I'm in the same boat. My 350 is tired and fouls the #7 plug after about 750 miles. I am not the only person that drives my truck because my entire family uses as a truck. So, I wanted something that is super reliable and easy to start, good a/c, good fuel economy, smooth, etc.
So, LS is the way I am going. I purchased my neighbors '01 Tahoe for $600. So far, I have pulled engine, degreased it, replaced lifters and resealed. Currently working on the wiring harness and planning location for ECM. It wont be long until I am ready to pull the old 350 out of the '71 and make the transplant. Super excited. |
Re: Engine swap
old school iron blocks are cool in my book.
|
Re: Engine swap
Quote:
|
Re: Engine swap
Quote:
To change to the newer style mounts the frame needs a bit of editing at the mount locations because the 70 frames rails are an inch closer together than later models. I had the understanding that a half an inch would need to be cut from the upper rail on each side when going to the newer mounts to keep the same geometry. Or this option, I suppose....http://67-72chevytrucks.com/vboard/s...ghlight=mounts Do I have that right? |
Re: Engine swap
Go with the 73 and newer clam style mounts.
|
Re: Engine swap
Quote:
|
Re: Engine swap
Quote:
|
Re: Engine swap
1 Attachment(s)
Quote:
|
Re: Engine swap
Over 30 years I only had one factory engine mount fail and that was due to oil eating the rubber and forgetting to remove a bolt while swaping 350
When I had my first 67 72 truck on the road I spent better part of 15 years driving it like I stole it Do you want fuel injection if yes go with an ls if no I would go with a l31 vortec engine Tuning a ls is much better and it does have individual fuel injectors that can be upgraded the vortec has a injector spider assembly that limits hp it can handle |
Re: Engine swap
I think you'll find the LS swap easier into a 2wd than a 4wd
|
Re: Engine swap
Here is a members project that he put a ls into a 4x4 can be done without a lift and aftermarket front cross member
https://67-72chevytrucks.com/vboard/...d.php?t=389895 |
All times are GMT -4. The time now is 08:07 AM. |
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com