Ok so my truck is almost fully assembled and should be a total beast its an 03 avalanche with a 6.0 iron block with a forged callies 4.0" crank, manly forged rods and pistons, ported ls7 heads with oversize valves that were shifted to fit the 4" bore of the 6.0, jessel shaft mounted rockers an overdrive balancer and a small pulley on the blower in currently set up to make 15 pounds but i cant use the ls7 intake because it sits too low and the throttle body hits the water pump does any one know of another intake i can use before i look into having a custom one made. otherwise i will have to change the heads and i wont be happy lol

 

a l92 truck intake off the new caddilac 6.2 should foot the bill and it has a 90mm throttle body

 

power junkie is probably ordering one tommorrow. Does anyone know for sure? we were eying it up against the suburban, the height works out fine obviously (its a truck afterall) but are the ports same shape and volume between the L92 intake and LS7 heads?

 

yeppers it will work they usually sale for 100 on ls1tech.com

 

Check this old thread for additional info.

https://ls1tech.com/forums/archive/i.../t-683832.html

CD

 

well it didn't work.

cleared the accessories, intake ports lined up, gaskets matched up.


bolt holes are slightly inboard of the LS7 bolt holes.

 

Will LS7 heads even clear on a 4" bore block???

 

out of the box no, these have been shifted.

 

ummm shifted ???

 

I need to ask just because I'm curious now. Is there going to be any flow advantage of an LS7 head that has been worked to fit a smaller bore over a set of ported L92's? I couldn't imagine there being a cost advantage. L92's aren't very expensive even with port work compared to a set of LS7 heads let alone with a reworked valve.

As for the intake, have you considered the 25534394 GM intake for a carbed LS7 setup? I has a spot for injectors ports to be drilled and there are plenty of throttle body elbow's out there for it. There is also 25534413 which should already have injector boss's in them.