Boost Friendly Motor Build Help!!
02-27-2007, 06:21 PM
#1
Teching In
Thread Starter
Join Date: Jul 2006
Location: originally Miami, now Orlando, FL (UCF Area)
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
Boost Friendly Motor Build Help!! I need help choosing the perfect combo for my STS kit. I'm Keeping the stock crank and Block.
The setup is going to be a STS running 10-15psi. Could option to run 15-17 psi later on for extra umphh once the drivetrain is reinforced. The heads will be stock, but I have a set of 6.0L 317 Aluminum Heads lying around with only 3k miles on them (don't know whether if I should throw them into the equation and go for lower cc pistons since the combustion chamber is much larger than stock)[would it be wise to?] and I plan on purchasing an MTI Stealth II CAM along with upgraded valve springs.
My first concern is, which set of pistons should I purchase if I were to use the 317 heads, and what should I get if I'm keeping the stock heads. I've been told to look for a set of Forged pistons with a 22cc to 26cc relief to lower my C/R to at least 8.9/1 to 8.5/1 with a 4.005 Bore if I were to keep the stock heads. Along with Lunati 6.000 Forged Connecting Rods.
Honestly While searching the net, I have no idea what I'm looking at pretty much. Also in accordance to the ARP rod bolts, Clevite mains, and Hell fire rings, are any specific specs I should purchase in order to compliment this application or are they universal?
The setup is going to be a STS running 10-15psi. Could option to run 15-17 psi later on for extra umphh once the drivetrain is reinforced. The heads will be stock, but I have a set of 6.0L 317 Aluminum Heads lying around with only 3k miles on them (don't know whether if I should throw them into the equation and go for lower cc pistons since the combustion chamber is much larger than stock)[would it be wise to?] and I plan on purchasing an MTI Stealth II CAM along with upgraded valve springs.
My first concern is, which set of pistons should I purchase if I were to use the 317 heads, and what should I get if I'm keeping the stock heads. I've been told to look for a set of Forged pistons with a 22cc to 26cc relief to lower my C/R to at least 8.9/1 to 8.5/1 with a 4.005 Bore if I were to keep the stock heads. Along with Lunati 6.000 Forged Connecting Rods.
Honestly While searching the net, I have no idea what I'm looking at pretty much. Also in accordance to the ARP rod bolts, Clevite mains, and Hell fire rings, are any specific specs I should purchase in order to compliment this application or are they universal?
02-27-2007, 06:32 PM
#2
on a stock CU you dont need that might of a dish on the pistons to get to 9:1.speed inc does like a 8-9cc dish piston and then add your 6.0 heads.diamond and weiseco makes good pistons and callies or eagle rods would be fine.on a stock motor swapping just the heads to the LQ9's would drop you down to ~9.5:1