SBC Engine Setback

tiedyemike8

Frequent Racer
Oct 28, 2009
658
0
0
Naperville, IL
Are there any drag or street race guys on here that have set the engine back in their G-body? Does anyone know how far a small block can be set back without firewall modification?
I haven't done this before, I'd like to move the motor back 4-6", which i figure will require the firewall to be moved. Also, should the crank centerline be adjusted?

Does anyone have input on this?
 

tiedyemike8

Frequent Racer
Oct 28, 2009
658
0
0
Naperville, IL
Any input guys?
 

bowtie81

Moderator
Mar 28, 2008
5,008
0
36
sarnia, ontario canada
I know a guy who moved it back and inch or so, didn't have any problems. Why do you need to move it back so much?
 

tiedyemike8

Frequent Racer
Oct 28, 2009
658
0
0
Naperville, IL
I know it will help with traction, weight transfer by improving weight distribution and the car's center of gravity. I'm sure it's not necessary for me to do it, but I think it would be beneficial, and the car is already apart. Working on narrowing the rear frame rails right now. I figured if I'm going to do it, now is the time. It would be easiest to mock it up and modify the firewall now, while its apart. I don't know if 1-2" would be worth the effort, but maybe 4-6" would.
 

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