Those who built/had motors built...
#1
Those who built/had motors built...
I have a 2002 LS6 block with ~3800 miles on it, and wanna do a Forged SB. What machine work is likely to need to be done?
I know it will need to:
1. Be honed to 3.905
2. True head surface
I will be reusing the stock crank, but with all new bearings, will the crank need to be turned, or just polished? Cam bearings should be ok and an align hone shouldn't be necessary, right? How much did you pay to have rotating assembly balanced? Anything else I am overlooking, I'm trying to plan this out and set a budget that I can stick to (unlike in the past, lol).
Things I have/need:
pistons, rings, rods
rod and main bearings
gaskets, seals (all new)
ARP head studs
Are ARP main studs necessary/worthwhile?
Thanks, Shawn
I know it will need to:
1. Be honed to 3.905
2. True head surface
I will be reusing the stock crank, but with all new bearings, will the crank need to be turned, or just polished? Cam bearings should be ok and an align hone shouldn't be necessary, right? How much did you pay to have rotating assembly balanced? Anything else I am overlooking, I'm trying to plan this out and set a budget that I can stick to (unlike in the past, lol).
Things I have/need:
pistons, rings, rods
rod and main bearings
gaskets, seals (all new)
ARP head studs
Are ARP main studs necessary/worthwhile?
Thanks, Shawn
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Well if your going to have forged pistons im almost sure you HAVE to have the block honed to accept the slightly larger pistons. I would get your crank checked out too while the motor is apart.
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Originally Posted by SPANKY LS1
Who did your machine work, somebody local? Thanks, Shawn
348ci 9:1 LS6 by Speed Inc.
FAST ECU by Cartek
Vortech YS Trim by SS Racing
Air to Air Intercooler by Griffin
Headers and X Pipe by Kooks
746rwhp, Unlocked T400
I think Speed Inc has the same shop who makes RGR heads build their motors. They are building my forged 348 11:1 LS6.
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Originally Posted by SPANKY LS1
I have a 2002 LS6 block with ~3800 miles on it, and wanna do a Forged SB. What machine work is likely to need to be done?
I know it will need to:
1. Be honed to 3.905
2. True head surface
I will be reusing the stock crank, but with all new bearings, will the crank need to be turned, or just polished? Cam bearings should be ok and an align hone shouldn't be necessary, right? How much did you pay to have rotating assembly balanced? Anything else I am overlooking, I'm trying to plan this out and set a budget that I can stick to (unlike in the past, lol).
Things I have/need:
pistons, rings, rods
rod and main bearings
gaskets, seals (all new)
ARP head studs
Are ARP main studs necessary/worthwhile?
Thanks, Shawn
I know it will need to:
1. Be honed to 3.905
2. True head surface
I will be reusing the stock crank, but with all new bearings, will the crank need to be turned, or just polished? Cam bearings should be ok and an align hone shouldn't be necessary, right? How much did you pay to have rotating assembly balanced? Anything else I am overlooking, I'm trying to plan this out and set a budget that I can stick to (unlike in the past, lol).
Things I have/need:
pistons, rings, rods
rod and main bearings
gaskets, seals (all new)
ARP head studs
Are ARP main studs necessary/worthwhile?
Thanks, Shawn
On the ARP main studs, I replace any Torque-to-yield bolts I can, so I'd vote yes.
#10
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Spanky,
I think with all the work it takes to build a forged SB the right way might as well step up and go for the stroker.
The only items you'll need for the stroker in additon to what's already listed are crank & rods. Eagle crank $850 & Crower rods ~$400 to $450. Since your already having to have the block machined and the rotating assembly balanced it's almost the perfect time to do it. Likewise, with APE have $1200 Callies cranks that might be an option to consider.
Speed Inc has a 348 ~$2799 short block for sale
http://www.ls1speed.com/engine9.cfm
and a 382 $4599 stroker short block.
http://www.ls1speed.com/engine15.cfm
Good luck with the project either way.
I think with all the work it takes to build a forged SB the right way might as well step up and go for the stroker.
The only items you'll need for the stroker in additon to what's already listed are crank & rods. Eagle crank $850 & Crower rods ~$400 to $450. Since your already having to have the block machined and the rotating assembly balanced it's almost the perfect time to do it. Likewise, with APE have $1200 Callies cranks that might be an option to consider.
Speed Inc has a 348 ~$2799 short block for sale
http://www.ls1speed.com/engine9.cfm
and a 382 $4599 stroker short block.
http://www.ls1speed.com/engine15.cfm
Good luck with the project either way.
#11
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IMO, you really should not have the hone done until you have the pistons in-hand. This way you can mic the piston diameter and hone precisely for the diameter. Most pistons call for about .004-.006 piston to wall clearance. To assume bore size in advance could lead to some mis-fitted parts.
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Engine builder here.....Todd, Brian is right. With today's piston quality you can hone your block before you have the pistons. Piston manufacturers such as Diamond, JE, Cp and so on hold piston tolerances within a couple tenths. Back about 5-10 years ago you used to have to have the pistons in hand to fit the block right. Just thought I would shed some light.
Thanks
BTW, we have our cheap street short blocks for $2799.00. I can have them ready in 3 weeks.
Also we have the "ready to go" blocks for $1200.00, core included!!
Thanks
BTW, we have our cheap street short blocks for $2799.00. I can have them ready in 3 weeks.
Also we have the "ready to go" blocks for $1200.00, core included!!
Last edited by Chris@AP-Engineering; 02-17-2004 at 08:58 PM.