The 1947 - Present Chevrolet & GMC Truck Message Board Network

The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)

- LSx Swaps (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=206)

- - 8.1 Swap (https://67-72chevytrucks.com/vboard/showthread.php?t=598919)

1970 CST Short Wide

10-02-2013 11:59 AM

Has Anybody done 8.1 Swap ??????

Has anyone installed an 8.1 with 4L80 trans in a 67-72. I have one and want to repace my 454 with it. Any help would be Greatly appreciated.

Steve

BR3W CITY

10-02-2013 03:53 PM

Re: 8.1 Swap

Its not the same designs as the other ls motors. Most of us pass on thenm due to limited aftermarket support and poor fuel econemy for what they deliver. If its a tow rig they arent bsd.
Posted via Mobile Device

AMERICAN PICK-UP

10-02-2013 04:02 PM

Re: Has Anybody done 8.1 Swap ??????

Quote:

Originally Posted by 1970 CST Short Wide (Post 6296207)

Has anyone installed an 8.1 with 4L80 trans in a 67-72. I have one and want to repace my 454 with it. Any help would be Greatly appreciated.

Steve

they are not LS engines they are the last of the big block chevys. 496 cubic inch big block chevy. i have sold several of them the last one that i sold went into a 69 chevelle. :gmc2:

1970 CST Short Wide

10-02-2013 05:07 PM

Re: Has Anybody done 8.1 Swap ??????

Quote:

Originally Posted by AMERICAN PICK-UP (Post 6296555)

they are not LS engines they are the last of the big block chevys. 496 cubic inch big block chevy. i have sold several of them the last one that i sold went into a 69 chevelle. :gmc2:

So it should bolt in place of my 454 then?? I know its not an LS but the price was right and I'll have overdrive AND fuel injection

ofnaman

10-02-2013 05:17 PM

Re: Has Anybody done 8.1 Swap ??????

Quote:

Originally Posted by 1970 CST Short Wide (Post 6296640)

So it should bolt in place of my 454 then?? I know its not an LS but the price was right and I'll have overdrive AND fuel injection

It should bolt right up. I was considering the 8.1's as well, but ended up going ls.

All times are GMT -4. The time now is 05:49 AM.