I found a LQ4 longblock no intake or water pump locally for 600 bucks. It came out of a 2500 express van due to some lifter noise which I figure is the piston slap. Motor has about 60k on it what do you guys think? What would be some nice upgrades to throw on it before it goes in the truck.

 

sweet, as for what you want to toss in it would determine what your goals are

 

Probably just a cam with the stock heads nothing to fancy.

 

just remember 317s flow well but just dont have the CR that is needed for larger cams. i ran a 215,xxx mile LQ4 in our pinks car with a 224/228 581/588 114 and it ran well with stock ls1 intake. youll be happy

 

be carefull with your cam choice. the lower compression of the lq4 doesnt go well with some cams.

 

what would be the largest cam you could effectively run with the 317's?

 

heads arent hte restrictive part, its your lack of CR

 

All depends on the setup and supporting mods. In the end it is all about how well your engine can bring in air and exhale the air. If you have a 12:1 CR engine with a 238 cam but stock intake paper filter and stock exhaust you arent going to see nearly as much of a benefit as with all the supporting mods. With that said mid 230 cam in a rcsb a fat stall, low230s high 220s in a ecsb/4wd.

 

Well the motor sold out from under me so I dont know what I want to do. Thinking about some 3.90's and a eaton posi it has a open 3.42 axle in it right now. I am not sure what I wanna do give me some ideas please