Need a few part numbers to put an LS3 in my F-body
04-24-2010, 10:05 PM
#1
Need a few part numbers to put an LS3 in my F-body I'm still looking for these:
- Cam sprocket gear to use a 3-bolt cam with a 24x reluctor. I think I read I can use one from a 2005 GTO? I'd prefer the part number though.
- After reading a lot on folks breaking their timing chains in the LS3 about a year ago, I need to know if there's been a reliable solution. I had planned on using a LS2 chain, the LS3 chain tensioner, and re-using my non-SFI ATI crank underdrive pulley from my LS1 motor. Looking for recommendations on the correct combination of parts that doesn't require a double-row chain, spacing the oil pump out, etc.
Thanks!
- Cam sprocket gear to use a 3-bolt cam with a 24x reluctor. I think I read I can use one from a 2005 GTO? I'd prefer the part number though.
- After reading a lot on folks breaking their timing chains in the LS3 about a year ago, I need to know if there's been a reliable solution. I had planned on using a LS2 chain, the LS3 chain tensioner, and re-using my non-SFI ATI crank underdrive pulley from my LS1 motor. Looking for recommendations on the correct combination of parts that doesn't require a double-row chain, spacing the oil pump out, etc.
Thanks!
04-25-2010, 11:27 AM
#2
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I'm still looking for these:
- Cam sprocket gear to use a 3-bolt cam with a 24x reluctor. I think I read I can use one from a 2005 GTO? I'd prefer the part number though.
- After reading a lot on folks breaking their timing chains in the LS3 about a year ago, I need to know if there's been a reliable solution. I had planned on using a LS2 chain, the LS3 chain tensioner, and re-using my non-SFI ATI crank underdrive pulley from my LS1 motor. Looking for recommendations on the correct combination of parts that doesn't require a double-row chain, spacing the oil pump out, etc.
Thanks!
- Cam sprocket gear to use a 3-bolt cam with a 24x reluctor. I think I read I can use one from a 2005 GTO? I'd prefer the part number though.
- After reading a lot on folks breaking their timing chains in the LS3 about a year ago, I need to know if there's been a reliable solution. I had planned on using a LS2 chain, the LS3 chain tensioner, and re-using my non-SFI ATI crank underdrive pulley from my LS1 motor. Looking for recommendations on the correct combination of parts that doesn't require a double-row chain, spacing the oil pump out, etc.
Thanks!
"Part# 12576407
Camshaft Spocket. Fits LS1, LS2 and LS6. 1X camshaft gear. Three bolt design, uses (3) of P/N 12556127."
04-28-2010, 10:14 PM
#4
You match the pulley to the rest of the accessories you are running. For instance the vette pulley fits tighter to the block and wouldn't line up with F-body accesories if that is what you are using.
Melling is now machining their pump housing different and using inset housing bolts that no longer requires shimming the pump to clear the double row TC. You Just need to make sure you are getting the newer design and not an old one that has been sitting around. Best of both worlds IMO...
Also somebody on here was selling the C5R single chains that are no longer made IIRC but are extremely strong. SDPC maybe??? ICRS anymore..... Katech had them at one time but I don't think have any more....
Melling is now machining their pump housing different and using inset housing bolts that no longer requires shimming the pump to clear the double row TC. You Just need to make sure you are getting the newer design and not an old one that has been sitting around. Best of both worlds IMO...
Also somebody on here was selling the C5R single chains that are no longer made IIRC but are extremely strong. SDPC maybe??? ICRS anymore..... Katech had them at one time but I don't think have any more....
04-30-2010, 07:11 PM
#6
[QUOTE=JimMueller;13260296]Katech still sells the C5R chains. The $400 ATI Super Damper isn't exactly in the budget, any reason I can't use a new LS1 balancer pulley?[/QUOTE]
Sounds like you want somebody else to confirm this but match a F-body balancer to F-body accessories or vette pulley to vette accessories etc... and you are good......It all depends on the accessories you are using as to your balancer choice.....
Sounds like you want somebody else to confirm this but match a F-body balancer to F-body accessories or vette pulley to vette accessories etc... and you are good......It all depends on the accessories you are using as to your balancer choice.....
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05-09-2010, 04:50 PM
#8
Helped perform the pre-assembly yesterday. Pistons are .0105-.011 out of the hole, now we need we can really make progress on this... so I need to order parts, and I don't want bad surprises during assembly 
This appears to be my master list of what I need to build the LS3 motor. I'm using mostly GM stuff because unless I get my Fast92 and LS1 heads sold I won't be able to afford the common upgrades. Some items are just really old and I'd like to replace them since it doesn't cost much (like the wires).
Looking for confirmation that I have the correct part numbers to mate the LS1 harnesses and accessories to the LS3 motor. Crank already has a 24x reluctor.
Morel bar lifters, Katech pump & chain, ARP head bolts & ATI Super Damper would all be in there if I could get these old parts sold 
This appears to be my master list of what I need to build the LS3 motor. I'm using mostly GM stuff because unless I get my Fast92 and LS1 heads sold I won't be able to afford the common upgrades. Some items are just really old and I'd like to replace them since it doesn't cost much (like the wires).
Looking for confirmation that I have the correct part numbers to mate the LS1 harnesses and accessories to the LS3 motor. Crank already has a 24x reluctor.
Code:
Description Manufacturer Part number Unit cost Block, bare (incl caps, bolts, cam brngs)GM 12602691 1200 Main bearings Federal Mogul 152M 118.13 Crankshaft GM 12597569 125 Rod Bearings Clevite CB663H 66.18 Connecting Rods & ARP 2000 rod bolts K1 CH6125ALLB-LSL-8519 pistons SRP 279593 479 cam Comp Cam Custom 407 lifter guide kit GM 17803305 16.8 lifters GM 12499225 121.95 head gasket (x2) GM 12610046 23.87 cylinder head set GM 12598594 900 head bolts GM 17800568 21.6 valvesprings PAC 1518 188.8 pushrods Manton valley cover GM 12570471 84.86 intake manifold GM 12602477 249.99 timing chain GM 12586482 32.36 timing chain tensioner GM 12626407 26.12 timing cam sprocket GM 12576407 27.03 timing cam sprocket bolt (x3) GM 12556127 1.72 Oil pump GM 12586665 93.99 oil pickup tube seal GM 12557752 4.55 oil pan, race baffle (optional) Improved Racing 200 oil pan gasket GM 12612350 23.19 oil pickup tube girdle BRP LS1-G 19.95 front cover GM 12600325 69.15 rear cover gasket GM 12574293 21.63 balancer pulley GM SLP100221 61.47 Balancer bolt GM 12557840 3.23 L92 Throttle Cable Adapter SLP SLP12509 66.99 Fuel Rail spacer Katech KAT-A4674 24.99 fuel rail GM 12633511 162.18 Cam & Knock Sensor adapter harness Katech KAT-4750 59.99 MAP sensor adapter harness Katech KAT-4751 33.95 water pump gaskets (x2) GM 12610311 5 Racetronix fuel system (w/ BGK8) Racetronix 135-F98-FPK 229.5 Spark plugs (gapped to .035) NGK 50-TR6 2.25 spark plug wires (optional) GM 12495519 55
