Is it a LM7?

There are 2 different versions of 243's out there..the LS2/LS6 ones, and the truck ones. The trucks have smaller valves.

 

I guess it must be....I'll have to research the Repair Order for the VIN and then look up the RPO codes tomorrow. They are definately the original heads/entire engine for the truck it came out of. It wasn't anything special and the engine was replaced under warranty for the low oil pressure issue.

I'll try to research the truck version of #243 heads in the meantime if I can find anything. Seems like most of the time I do a search it brings up way too many threads that have very little to do with what I need to know.

OP....did you get only 1 LS3 head because that's all you could find or are you just getting them one at a time for monetary purposes?

 

i only bought one bc it was cheap and all he had...

i bought a 4l60e tonight from a 98-99 tahoe 2wd running driving good transmission... for $30 thats right complete working transmission for thirty dollars

 

That's amazing.....you just saved enough right there to more than pay for the other head you need.

 

yeah i think im gonna try to sell the head i have and buy a pair of 823's bc by time i buy the matching head new im in the same price as a pair of new slightly better heads. now i need a cam and stall and i can start putting stuff back together

 

slight delay in progress, yesterday my wifes great, great, grandma passed away, my grandma had a stroke, and my cousin went to the e.r... so im headed out of state tomorrow after work.

 

Sorry to hear about all of that. I know your wife is sad, but WOW what a blessing to have had her great great grandma alive so long. I'm almost 38 and all 4 of my grandparents have been gone for several years. I can barely remember my great grandmothers....great, greats were gone way before my time.

 

yeah she lived to be 100 years old. the only time i met her was in january for her birthday. but yes yesterday was full of curveballs.

 

Ya'll have a safe trip. I'll keep your family in my prayers.

 

thanks man, it means quite a bit. and i hope to have thats transmission out monday night. but right now im still shook up about my grandma, shes the one who helped me buy the trans am. she would/did everything she could to help me out. i just wish i could help her. but the only thing i can do is keep praying...

 

merv, what if/anything do i need to bolt this trans to the 6.0? it has the removeable bell housing, and is bolted to a 350 vortech. i tried google but i couldnt find anything about it.

 

If it's a late model removable bell, you should be able to just swap bells with a 98-02 4l60e bell.

 

awesome, i hope your right.

 

If it's the removable bell housing you are good..GM started that in 1998.

 

so just swap the bell? or are you saying if its the removeable one i can use it?

 

If the transmission is off of a Vortec 350 SBC, it would be the same as an LT1 4l60e, just with a removable bell. You'd either need to adapt that bell the same way you adapt an older trans to an LSX, or just swap to a 98-02 4l60e f-body bell or another LSX based vehicle's bell with a 4l60e.

 

ok thats what i thought you meant

 

Wouldn't you need to swap convertors too? Is the input shaft the same length regardless of bellhousing on the 98+ 4L60e's?

 

Negative, not a 1998 one..

That is the first year that the LS Style is run on ANY GM Engine, except for the 4L80E ofcourse.

I've only seen a few roll through the shop...just a few..

It will work with a LS Convertor..that's all you need to make it happen.

 

awesome. so all i need is the stall converter to match the cam and all is gravy then?!? sounds pretty easy to me