Budget 370ci build, missing key factor (pistons)
Budget 370ci build, missing key factor (pistons) Alright so the low down on my 370ci build is coming to a halt,here is the parts list so far.
LQ4 bored .030 over
PRC 5.3L STG 2.5
Patriot Gold .660 springs
FAST 102mm intake
Nick Williams 102mm TB
LS2 fuel rails
bosch 42# injectors
Futral F14 High lift cam
LS7 lifters
LS2 Trays
SCAT I beam 6.125 rods
Billet Double roller timing chain
LS6 ported oil pump
Now all i'm looking for is pistons and rings, though my budget is coming to a close end, I'm looking for 4.030 pistons with the obvious 6.125 rod length in the 300-500 price range. i've been looking a speed pros but i haven't found a vendor that sells them for LS motors in the configuration i need. any thoughts on what would be a good option for pistons for my build?
LQ4 bored .030 over
PRC 5.3L STG 2.5
Patriot Gold .660 springs
FAST 102mm intake
Nick Williams 102mm TB
LS2 fuel rails
bosch 42# injectors
Futral F14 High lift cam
LS7 lifters
LS2 Trays
SCAT I beam 6.125 rods
Billet Double roller timing chain
LS6 ported oil pump
Now all i'm looking for is pistons and rings, though my budget is coming to a close end, I'm looking for 4.030 pistons with the obvious 6.125 rod length in the 300-500 price range. i've been looking a speed pros but i haven't found a vendor that sells them for LS motors in the configuration i need. any thoughts on what would be a good option for pistons for my build?
Well i'm running a 370 LQ9 bored .030 over with PRC stage 2.5/5.3 heads, and a cam very similar to yours. I'm running 4.030 Diamond pistons along with TMS Moly rings. It works great for me 
Probe makes pistons that are in the 400 range that are decent. They are 2618 alloy. Their 4032 forging is like 280-300. They are cheap but a step up over stock pistons.
Wiseco 2618 forging pistons and rings can be had for about 675 and Mahle 4032 pistons and rings for about 650.
2618 is better for power adders and 4032 better for NA.
Wiseco 2618 forging pistons and rings can be had for about 675 and Mahle 4032 pistons and rings for about 650.
2618 is better for power adders and 4032 better for NA.
Probe makes pistons that are in the 400 range that are decent. They are 2618 alloy. Their 4032 forging is like 280-300. They are cheap but a step up over stock pistons.
Wiseco 2618 forging pistons and rings can be had for about 675 and Mahle 4032 pistons and rings for about 650.
2618 is better for power adders and 4032 better for NA.
Wiseco 2618 forging pistons and rings can be had for about 675 and Mahle 4032 pistons and rings for about 650.
2618 is better for power adders and 4032 better for NA.
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Joined: Apr 2010
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From: North Carolina
I was using a calculator i found online but i must have entered a number because i got a whack *** compression ratio of 16:1 which would be utterly insane
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Verdad Gallardo Never really got a really acurate number since it was a brand new motor (no break in time) and was done on a really stingy Mustang dyno...the owner himself said they call it the "hearbreake dyno" at the shop lol. Anyways, it laid down 420 rwhp that day n/a. It should easily be 450 rwhp + on a Dynojet dyno...plus being totally broke in now too
Alright so it's come down to the cam as instead of the off the self F14 cam they spec'd one for my build that is rather radical for me.
246/252 .612/.620 112+4 LSA
Now I'm positive I'll need valve reliefs to keep my valvetrain in check. Though what would recommend for the relief depth with the PRC heads with a 62cc and a .051 gasket?
246/252 .612/.620 112+4 LSA
Now I'm positive I'll need valve reliefs to keep my valvetrain in check. Though what would recommend for the relief depth with the PRC heads with a 62cc and a .051 gasket?
Alright so it's come down to the cam as instead of the off the self F14 cam they spec'd one for my build that is rather radical for me.
246/252 .612/.620 112+4 LSA
Now I'm positive I'll need valve reliefs to keep my valvetrain in check. Though what would recommend for the relief depth with the PRC heads with a 62cc and a .051 gasket?
246/252 .612/.620 112+4 LSA
Now I'm positive I'll need valve reliefs to keep my valvetrain in check. Though what would recommend for the relief depth with the PRC heads with a 62cc and a .051 gasket?
Pondering why I should change to BTR's when the ones i have now which are pretty much new. I might have to start looking for another piston option as i call probe and they were out of 4.030 pistons in the 6.125 rod length
I'll shoot you guys a call since my hunt for pistons is slowing down gradually and i need to make a purchase with the quickness.
PAC 1905s would be my choice. BTR actually sells the kit for them. You can get either the kit or just the springs from Brian: http://www.briantooleyracing.com/650...retainers.html
And check here for Probe (4.030" for 3.622" stroke and 6.125" rods with 3cc valve reliefs): http://www.ws6project.com/user_stor/...oducts_id=4275
And check here for Probe (4.030" for 3.622" stroke and 6.125" rods with 3cc valve reliefs): http://www.ws6project.com/user_stor/...oducts_id=4275
We will await your call.
For this setup we would really recommend the Mahle Power Pak series as we have found them extremely reliable and the ring set is nice too. They are double coated as well. A few piston manufacturers dont offer this standard and if they do it is only a skirt coating (normally).
Thanks
coloradoSPEED
For this setup we would really recommend the Mahle Power Pak series as we have found them extremely reliable and the ring set is nice too. They are double coated as well. A few piston manufacturers dont offer this standard and if they do it is only a skirt coating (normally).
Thanks
coloradoSPEED
