The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-10-2013, 08:37 PM   #1
willett
Another Day, Another Dollar
 
willett's Avatar
 
Join Date: Nov 2008
Location: North Vancouver, BC
Posts: 1,316
8.1 vortec?

What would it take to drop one into my '78 ( it would replace a 454)
Posted via Mobile Device
__________________
-78 K20 Cheyenne 454 long box, 4" lift, 35" MT's, '84 cab, '80 box

"its hip to be square"
willett is offline   Reply With Quote
Old 07-10-2013, 08:41 PM   #2
BONUSCAB
Registered User
 
Join Date: Jan 2013
Location: east troy, WI
Posts: 341
Re: 8.1 vortec?

A lot of bravery. Everything I've heard about them is that they are grenades.
BONUSCAB is offline   Reply With Quote
Old 07-10-2013, 08:46 PM   #3
Pop's C-10
Registered User
 
Pop's C-10's Avatar
 
Join Date: Jul 2010
Location: memphis
Posts: 2,537
Re: 8.1 vortec?

DirtyLarry is tha man you need to talk to

http://67-72chevytrucks.com/vboard/s...d.php?t=298696

http://67-72chevytrucks.com/vboard/s...d.php?t=373400
__________________
1981 C-10 (Pop's)
1978 Camaro
2006 Lacrosse
Pop's C-10 is offline   Reply With Quote
Old 07-10-2013, 09:06 PM   #4
meatwagon83
Registered User
 
meatwagon83's Avatar
 
Join Date: Dec 2012
Location: Preble county ohio
Posts: 1,914
Re: 8.1 vortec?

Quote:
Originally Posted by BONUSCAB View Post
A lot of bravery. Everything I've heard about them is that they are grenades.
somebody lied to you!!
__________________
"DON'T TOUCH THE TRIM!!"-Early Kyler
meatwagon83 is offline   Reply With Quote
Old 07-10-2013, 09:07 PM   #5
Ziegelsteinfaust
Registered User
 
Join Date: Dec 2012
Location: Temple City
Posts: 3,600
Re: 8.1 vortec?

They just about bolt in from the threads I have read.

It wouldn't be my first choice as they are sort of un-loved, but it is a solid motor. Plus I feel it is better then the 6.0 for the 2500/3500HD's.

When I was considering a Big block I was thinking of doing the vortec head swap with a decent cam.
Ziegelsteinfaust is offline   Reply With Quote
Old 07-10-2013, 11:47 PM   #6
Brockwaykid
Registered User
 
Brockwaykid's Avatar
 
Join Date: Mar 2013
Location: Granville NY
Posts: 241
Re: 8.1 vortec?

the only thing bad about an 8.1 is the mileage. love them.
Posted via Mobile Device
__________________
Jeff Shaw
2003 Chevy 2500HD LB7 Duramax
Brockwaykid is offline   Reply With Quote
Old 07-10-2013, 11:57 PM   #7
DirtyLarry
Windy Corner of a Dirty Street
 
DirtyLarry's Avatar
 
Join Date: Jun 2003
Location: Pueblo West, Colorado
Posts: 2,926
Re: 8.1 vortec?

Almost everything you ever wanted to know about an 8.1L in one thread. I got tired of the numerous PM’s and emails and started a dedicated thread on a reliable forum
DirtyLarry is offline   Reply With Quote
Old 07-11-2013, 02:50 AM   #8
Jewbacca
Registered User
 
Jewbacca's Avatar
 
Join Date: Oct 2011
Location: Brooklyn Park MN
Posts: 44
Re: 8.1 vortec?

Quote:
Originally Posted by BONUSCAB View Post
A lot of bravery. Everything I've heard about them is that they are grenades.
I have one with almost 300k that says different. 8.1 is **** on gas mileage but makes up for in power and reliability. The reason they are not that common of a swap is because they are not that common.
Jewbacca is offline   Reply With Quote
Old 07-11-2013, 07:44 PM   #9
Tom
driving is in my blood
 
Tom's Avatar
 
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,730
Re: 8.1 vortec?

Quote:
Originally Posted by BONUSCAB View Post
A lot of bravery. Everything I've heard about them is that they are grenades.
Yes, one of the oldest, most time tested engine designs on the road from GM is a granade...... Its funny but I hear this from time to time on forums for just about every motor GM has put out in the last decade.
__________________
-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle.
-98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes.
-02 Suburban 4x4: leveled front
-CBR600F4i, CBR600RR, CBR1000RR, and standup skis
DISCLAIMER: I cant spell for the life of me.
Tom is offline   Reply With Quote
Reply

Bookmarks


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

Forum Jump


All times are GMT -4. The time now is 10:27 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com