[slowbird]

I'm struggling to see the difference between the 1240 and 1730 pans. Can we get depth and width measurements from both?

[Nacs Fab]

Originally Posted by slowbird

I'm struggling to see the difference between the 1240 and 1730 pans. Can we get depth and width measurements from both?

The 1240 is squared off where it would hit most factory crossmembers, the 1730 is clearanced by having tapered front portion of the pan for fitting most Factory crossmembers.

I would honestly say the 1240 is more of a Chassis Car pan than the 1730, which was probably developed for more Super Stock racing.

1730:



1240:

[slowbird]

Originally Posted by Nacs Fab

The 1240 is squared off where it would hit most factory crossmembers, the 1730 is clearanced by having tapered front portion of the pan for fitting most Factory crossmembers.

I would honestly say the 1240 is more of a Chassis Car pan than the 1730, which was probably developed for more Super Stock racing.

1730:



1240:

Thank you! What headers fit those pans? With the kick outs I'm guessing custom headers?

[Nacs Fab]

Originally Posted by slowbird

Thank you! What headers fit those pans? With the kick outs I'm guessing custom headers?

I have Mad Dog Headers for a 1st Gen F-Body and I modified tubes for #4 and #8. Their F-Body header has 2 center tubes on one flange and each outer tube on its own flange.

I removed #4 & #8 tubes from their mounting flange and bolted the flanges to the heads, with #2 and #6 tubes still in place. I basically took the Slip on Collector and moved it over towards the outside of the frame on tubes 2&6 (one whole set of tubes) if you know what I mean..., Then I rebuilt tubes #4 and #8 cylinders as shown:



My mockup had an engine "stand" that put me at my desired Crank CL off "ground" and I made it have the kickout in the stand so i knew how far away to be from the oil pan.