Yes they do, even in my 418 with a 237/242 cam it still had damn good part throttle response.

I wouldnt be too hesitant to do a 402 LS2, the longer cylinder walls will help alot with the normal bad stroker harmonics.

 

Gotcha. I'm still fed up with my high comp LQ9 in regards to throttle response. It just isn't any good. I think it's just a losing battle with the weight of these trucks. I plan to go turbo, but that really wont help my highway cruising power. Only thing I can see to do is go bigger, but as stated above isn't great for longevity

 

Thats basically the same as the 370 option just a smaller bore so I think it would be fine too for longevity. IIRC when I measured the walls of on both blocks they were the same.

Richard at WCCH did the measuring on an LS2 block when we were trying to figure out my oil burning issues.

 

so is a 370 a better daily driver than a forged lq9???/

 

LQ9 is the rpo code for the 364 cubic inch flat top pistoned GENIII chevrolet motor, once you pull it apart and put forged rods and pistons in it, its no longer an LQ9

So long story short an LQ9 once forged is a 370.

All a 370 is, is a 6.0 block whether it be LQ4 or LQ9, bored .03 over. You drop in a set of forged rods and pistons, get it all balanced and you have a nice stout motor.

The only difference in using an LQ4 or an LQ9 is an LQ9 will probably be cheaper to balance since the stock crank in that motor has heavier counterweights(up until 05) so you will need less mallory(if any depending on your rod and piston weight) to properly balance. But usually the LQ9s bring a higher premium to start with so that probably a mute point.

05 and up 6.0s shared the same rod design so the only difference then was the top of the piston design.

 

I remember on ls1tech Katech (sp?) said for any stroker longer than stock they resleeved the alum blocks with a different sleeve and said it greatly reduced oil consumption.

 

If you turbo your LQ9 you will have tons of power on the highway.

 

Silver-mod o told me it goesnt go into boost when cruising.....how is it increasing power?

 

as soon as you step on it you will load up the turbo and it will spool giving you boost.

 

lol....i dont want to have to floor it to pass someone. I like my truck to be able to accelerate up a hill at the touch of the throttle....that's what I consider to be good throttle response.