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imcasc8@yahoo.com
01-09-2013, 09:13 PM
I have to put together a new engine for my mod. i have been using 383's and a 406. last season i blew both the 383's and down to that 406.

well i was thinking of using a ls motor. anyone ever do that? i have a cast iron 6.0 sitting in the shop and that block and heads look pretty fast.

what would i do for a cam? can some one custom grind a flat tappet cam for that engine? i know id have to add a distributor too.

is all this worth it or would this be a dead end.

stockcar5
01-10-2013, 07:00 AM
it wouldnt be legal for imca. the firing order is incorrect and i dont think they allow non 23 degree heads.

imcasc8@yahoo.com
01-10-2013, 08:16 AM
Thanks stockcar5. i never thought of that rule guess i only applied the ones i wanted. kinda closed minded looking at that. thats great to get your input.

Yes the heads are cast iron on this one was in a truck. shame i cant run it as the intake ports are huge i can fit my hand in it. and that block looks (not a nice word)(not a nice word)(not a nice word)(not a nice word) strong. especialy the main caps.

so now my build switches to a old school chevy. wich i been ok on power but could use a little more low end off the corner grunt. especialy since the 7800 rule

stockcar5
01-10-2013, 11:21 AM
its say oem firing order (gm 1-8-4-3-6-5-7-2) you may be able to get a cutom ground cam to use that firing order with a ls engine.
if you were serious about it i'd call imca and see what they say. my guess is it would be a no go since it's different and doesnt require an imca stamp.

imcasc8@yahoo.com
01-10-2013, 10:02 PM
Really hate to take that route would rather be the only car out there that figured it out and able to run a ls motor.

JHobbs26
01-11-2013, 04:52 AM
http://www.schwankeshortblocks.com/

give Tim a call, he's been doing LS1 circle track motors for a long time now.

sj valley dave
01-14-2013, 05:07 PM
Since that line of engine's Original Equipment Manufacturer's firing order is 18726543, wouldn't that make it legal? Not all OEM firing orders are 18436572...

heafroe
01-14-2013, 07:23 PM
Ls base motors are not 23 degree heads. Plus they are roller cams and are not allowed. Next you would have to have a distributer. And ls use crank pick up. Some day maybe.

stockcar5
01-14-2013, 07:52 PM
gm makes a front cover for ls motors that use a distributor and a standard fuel pump. also im sure a non roller cam can be ground for an ls motor.

istock11m
01-14-2013, 07:59 PM
For the time and money, i dont think it would be worth it. After they tested the CT525 crate last year and gave it a no, i doubt they would allow a ls to compete.

sj valley dave
01-15-2013, 12:27 PM
Don't forget, a CT525 is an all aluminum engine. This guy has an all iron engine...