8.1 vortec

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12-15-2010, 04:48 PM
8.1 chevelle

8.1 vortec

I have installed a 8.1 G.M. (496) based indmar marine engine into my 1967 chevelle 450hp 560tq has anyone ever tried this?????:confused:
12-15-2010, 08:58 PM
Biff

In my experience, marine cams don't work very well in street engines. If the cam was changed, I would think it would work pretty well.
12-16-2010, 03:51 AM
tango

We have some 8.1's at Work in the Large Trucks . Have not had one all a-part yet . But we have one that runs Low oil PSI . soon it will need to be re done .

Here is a Link that you Might enjoy Looking at ;)

http://www.lt1swap.com/vortec8100.htm
12-16-2010, 06:32 AM
pat mccarthy

Quote:

Originally Posted by Biff

In my experience, marine cams don't work very well in street engines. If the cam was changed, I would think it would work pretty well.

HMMMM really? boy sure used alot of them 500/500 222/222 @050 on 114 and some of the rollers 483/ 224@050 on 115. and other no phone calls :) used the 350 marine roller on a street car thats the 383 HQ crate engine cam used from gm is a.350 marine grind that i have used as well .marine engines need to get a boat up on plane so they make very good power
12-16-2010, 03:03 PM
8.1 chevelle

Quote:

Originally Posted by pat mccarthy

HMMMM really? boy sure used alot of them 500/500 222/222 @050 on 114 and some of the rollers 483/ 224@050 on 115. and other no phone calls :) used the 350 marine roller on a street car thats the 383 HQ crate engine cam used from gm is a.350 marine grind that i have used as well .marine engines need to get a boat up on plane so they make very good power

I will agree with you the first time I drove it I came back home told my wife I should sell that engine Iwould get killed with it............ naaaaaaaaaaaaaaa but it is a torque monster**)