Rod bearing failure = change crankshaft only ... or next level ?
02-03-2014, 12:45 PM
#1
Rod bearing failure = change crankshaft only ... or next level ?
My car is a MN6 street (8k miles /y) and strip car (3/5 drag race weekend /y)
Engine was a full 2000 stock LS1 68k miles with just vortech V3 SI/3.4 pulley, Large Cam(power range until 6900rpm)/springs/retainers/pushrod, LS2 chain
(other mods are 1000 injector, 2inch header, no cat)
I am looking at a "budget" setup
So, some options are my current dilemma
1) Rebuilt as stock :
Buy all OEM (crankshaft, rod, rod bearing, main bearing, bolts ,gaskets, piston rings, oil pump, head stud, ls1 head gasket)
2) Rebuilt as forged :
Buy FORGED crankshaft, FORGED rod, rod bearing, main bearing, ARP bolts ?, gaskets, piston rings, FORGED PISTON, MELLING oil pump, ARP head stud?, LS9 head gasket?
3) Rebuilt as forged and stroked (power range will be until 6500 and not 6900rpm) :
Buy FORGED STROKED crankshaft, FORGED rod, rod bearing, main bearing, ARP bolts, gaskets, piston rings, FORGED PISTON, MELLING oil pump, ARP head stud?, LS9 head gasket?
4) Going LQ9 (forged or not, stroked or not)
(hoping miss nothing)
FWI :
also need MN6 rebuild kit (shift issue),
upgrade damper (mine is again wooble, so going from 8 to 8.5"),
think to new lifters and tray (noise when cold),
think to trunion upgrade (cheap assurance ?)
think to swap for LSA head (ported or not) if i find a good deal (
lots of part and $^
Engine was a full 2000 stock LS1 68k miles with just vortech V3 SI/3.4 pulley, Large Cam(power range until 6900rpm)/springs/retainers/pushrod, LS2 chain
(other mods are 1000 injector, 2inch header, no cat)
I am looking at a "budget" setup
So, some options are my current dilemma
1) Rebuilt as stock :
Buy all OEM (crankshaft, rod, rod bearing, main bearing, bolts ,gaskets, piston rings, oil pump, head stud, ls1 head gasket)
2) Rebuilt as forged :
Buy FORGED crankshaft, FORGED rod, rod bearing, main bearing, ARP bolts ?, gaskets, piston rings, FORGED PISTON, MELLING oil pump, ARP head stud?, LS9 head gasket?
3) Rebuilt as forged and stroked (power range will be until 6500 and not 6900rpm) :
Buy FORGED STROKED crankshaft, FORGED rod, rod bearing, main bearing, ARP bolts, gaskets, piston rings, FORGED PISTON, MELLING oil pump, ARP head stud?, LS9 head gasket?
4) Going LQ9 (forged or not, stroked or not)
(hoping miss nothing)
FWI :
also need MN6 rebuild kit (shift issue),
upgrade damper (mine is again wooble, so going from 8 to 8.5"),
think to new lifters and tray (noise when cold),
think to trunion upgrade (cheap assurance ?)
think to swap for LSA head (ported or not) if i find a good deal (
lots of part and $^
02-03-2014, 02:03 PM
#2
Team Owner
Member Since: Jan 2007
Location: cookeville tennessee
Posts: 28,846
Received 1,762 Likes
on
1,529 Posts
My car is a MN6 street (8k miles /y) and strip car (3/5 drag race weekend /y)
Engine was a full 2000 stock LS1 68k miles with just vortech V3 SI/3.4 pulley, Large Cam(power range until 6900rpm)/springs/retainers/pushrod, LS2 chain
(other mods are 1000 injector, 2inch header, no cat)
I am looking at a "budget" setup
So, some options are my current dilemma
1) Rebuilt as stock :
Buy all OEM (crankshaft, rod, rod bearing, main bearing, bolts ,gaskets, piston rings, oil pump, head stud, ls1 head gasket)
2) Rebuilt as forged :
Buy FORGED crankshaft, FORGED rod, rod bearing, main bearing, ARP bolts ?, gaskets, piston rings, FORGED PISTON, MELLING oil pump, ARP head stud?, LS9 head gasket?
3) Rebuilt as forged and stroked (power range will be until 6500 and not 6900rpm) :
Buy FORGED STROKED crankshaft, FORGED rod, rod bearing, main bearing, ARP bolts, gaskets, piston rings, FORGED PISTON, MELLING oil pump, ARP head stud?, LS9 head gasket?
4) Going LQ9 (forged or not, stroked or not)
(hoping miss nothing)
FWI :
also need MN6 rebuild kit (shift issue),
upgrade damper (mine is again wooble, so going from 8 to 8.5"),
think to new lifters and tray (noise when cold),
think to trunion upgrade (cheap assurance ?)
think to swap for LSA head (ported or not) if i find a good deal (
lots of part and $^
Engine was a full 2000 stock LS1 68k miles with just vortech V3 SI/3.4 pulley, Large Cam(power range until 6900rpm)/springs/retainers/pushrod, LS2 chain
(other mods are 1000 injector, 2inch header, no cat)
I am looking at a "budget" setup
So, some options are my current dilemma
1) Rebuilt as stock :
Buy all OEM (crankshaft, rod, rod bearing, main bearing, bolts ,gaskets, piston rings, oil pump, head stud, ls1 head gasket)
2) Rebuilt as forged :
Buy FORGED crankshaft, FORGED rod, rod bearing, main bearing, ARP bolts ?, gaskets, piston rings, FORGED PISTON, MELLING oil pump, ARP head stud?, LS9 head gasket?
3) Rebuilt as forged and stroked (power range will be until 6500 and not 6900rpm) :
Buy FORGED STROKED crankshaft, FORGED rod, rod bearing, main bearing, ARP bolts, gaskets, piston rings, FORGED PISTON, MELLING oil pump, ARP head stud?, LS9 head gasket?
4) Going LQ9 (forged or not, stroked or not)
(hoping miss nothing)
FWI :
also need MN6 rebuild kit (shift issue),
upgrade damper (mine is again wooble, so going from 8 to 8.5"),
think to new lifters and tray (noise when cold),
think to trunion upgrade (cheap assurance ?)
think to swap for LSA head (ported or not) if i find a good deal (
lots of part and $^
02-03-2014, 02:40 PM
#3
Sell short block and get one already prepped. I always see guys post after getting their own engine forged that they should've bought a forged shortblock as it would've been cheaper.
02-03-2014, 02:42 PM
#4
Le Mans Master
good combo 
02-03-2014, 03:07 PM
#5
Le Mans Master
Not sure what your budget is, my buddy has the following used parts for sale:
Forged Lunati 4" stroker crank
Forged Oliver rods
LS2 block - tapped for 1/2" head studs, machined for (included) DM Performance engine girdle
Forged Diamond Pistons & pins - part no 11521
Bore 4.03
Stroke 4.000
Rod 6.125
C.D.1.115
Weight 463
Pin .927 x 2.500
CC’s -15.0cc
Compression at 62cc = 10.5
Compression at 66cc = 10.0
Compression at 70cc = 9.8
Everything came from the same short block, so basically it's a complete package that needs a refresh (hone/rings, polish crank/bearings, assemble)
Parts are $3k + shipping
Parts/Refreshed/Assembled by Jim Bowen Racing Engines $4K + shipping (requires 1K deposit)
Forged Lunati 4" stroker crank
Forged Oliver rods
LS2 block - tapped for 1/2" head studs, machined for (included) DM Performance engine girdle
Forged Diamond Pistons & pins - part no 11521
Bore 4.03
Stroke 4.000
Rod 6.125
C.D.1.115
Weight 463
Pin .927 x 2.500
CC’s -15.0cc
Compression at 62cc = 10.5
Compression at 66cc = 10.0
Compression at 70cc = 9.8
Everything came from the same short block, so basically it's a complete package that needs a refresh (hone/rings, polish crank/bearings, assemble)
Parts are $3k + shipping
Parts/Refreshed/Assembled by Jim Bowen Racing Engines $4K + shipping (requires 1K deposit)
Last edited by 4DRUSH; 02-03-2014 at 07:27 PM.
02-03-2014, 07:11 PM
#6
Team Owner
Member Since: Jan 2007
Location: cookeville tennessee
Posts: 28,846
Received 1,762 Likes
on
1,529 Posts
Not sure what your budget is, my buddy has the following used parts for sale:
Forged Lunati 4" stroker crank
Forged Oliver rods
LS2 block - tapped for 1/2" head studs, machined for (included) DM Performance engine girdle
Forged Diamond Pistons & pins - part no 11521
Bore 4.03
Stroke 4.000
Rod 6.125
C.D.1.115
Weight 463
Pin .927 x 2.500
CC’s -15.0cc
Compression at 62cc = 10.5
Compression at 66cc = 10.0
Compression at 70cc = 9.8
Everything came from the same short block, so basically it's a complete package that's needs a refresh (hone/rings, polish crank/bearings, assemble)
Parts are $3k + shipping
Parts/Refreshed/Assembled by Jim Bowen Racing Engines $4K + shipping (requires 1K deposit)
Forged Lunati 4" stroker crank
Forged Oliver rods
LS2 block - tapped for 1/2" head studs, machined for (included) DM Performance engine girdle
Forged Diamond Pistons & pins - part no 11521
Bore 4.03
Stroke 4.000
Rod 6.125
C.D.1.115
Weight 463
Pin .927 x 2.500
CC’s -15.0cc
Compression at 62cc = 10.5
Compression at 66cc = 10.0
Compression at 70cc = 9.8
Everything came from the same short block, so basically it's a complete package that's needs a refresh (hone/rings, polish crank/bearings, assemble)
Parts are $3k + shipping
Parts/Refreshed/Assembled by Jim Bowen Racing Engines $4K + shipping (requires 1K deposit)
02-03-2014, 08:50 PM
#7
Was no thinking to bye a short block, but thanks !
Have List this
FORGED STROKED crankshaft and rod 1120$ http://www.ebay.com/itm/Lunati-Crank-Rod-Kit-LUN70340001K1-GM-LS-Crankshaft-4-000-Stroke-Voodoo-24T-/301063763721?pt=Motors_Car_Truck_Parts_Accessories&hash=item4618cc7709&vxp=mtrFORGED PISTON Diamond Pistons #11504 495$ http://www.ebay.com/itm/Diamond-Pist...-/380698483707
rod bearing main bearing 68$ http://www.ebay.com/itm/Chevy-LS1-LS6-5-7-5-7L-Clevite-A-Main-Rod-Bearing-Set-Rods-Mains-Bearings-/331093191273?pt=Motors_Car_Truck_Parts_Accessories&hash=item4d16b12a69&vxp=mtrpiston rings 88$ http://www.ebay.com/itm/Chevy-Pontiac-LS1-LS6-5-7-5-7L-MAHLE-Perfect-Circle-Moly-Piston-Rings-Set-STD-/151054976777?pt=Motors_Car_Truck_Parts_Accessories&hash=item232b940709&vxp=mtrGM gaskets and bolt for head 135$ http://www.improvedracing.com/gasket...217-p-261.html
GM oil pan gasket 30$ http://www.improvedracing.com/gasket...39b5d448e21afc
GM Crank Bolt 6$ http://www.lingenfelter.com/mm5/merc...1#.UvBCaE2Ybcs
Timing Cover Gasket Set 59$ http://www.ebay.com/itm/Fel-Pro-TCS4...-/400643870712
4 x GM LS2 Lifter Trays 32$ http://www.texas-speed.com/p-222-gm-...fter-tray.aspx
GM LS7 Lifter Set 140$ http://www.texas-speed.com/p-309-gm-...7-lifters.aspx
MELLING oil pump hi pressure 115$ http://www.ebay.com/itm/Chevy-6-0-6-...-/310837762925
GM Oil "Barbell" ?
GM Oil Pump Seal (Orange Blue Black Green ???)
GM Rear Cover Gasket ?
GM Rear Cover Seal ?
2300$ all new
And have to add :
* Stage 2 Rebuild Kit for T56 Corvette 905$ http://www.thegearbox.org/catalog/it...25/9379737.htm
* OD SFI balancer 340$ ttp://www.jegs.com/i/JEGS+Performance+Products/555/516253/10002/-1
* New belt ?
more than 3600$
Have List this
FORGED STROKED crankshaft and rod 1120$ http://www.ebay.com/itm/Lunati-Crank-Rod-Kit-LUN70340001K1-GM-LS-Crankshaft-4-000-Stroke-Voodoo-24T-/301063763721?pt=Motors_Car_Truck_Parts_Accessories&hash=item4618cc7709&vxp=mtrFORGED PISTON Diamond Pistons #11504 495$ http://www.ebay.com/itm/Diamond-Pist...-/380698483707
rod bearing main bearing 68$ http://www.ebay.com/itm/Chevy-LS1-LS6-5-7-5-7L-Clevite-A-Main-Rod-Bearing-Set-Rods-Mains-Bearings-/331093191273?pt=Motors_Car_Truck_Parts_Accessories&hash=item4d16b12a69&vxp=mtrpiston rings 88$ http://www.ebay.com/itm/Chevy-Pontiac-LS1-LS6-5-7-5-7L-MAHLE-Perfect-Circle-Moly-Piston-Rings-Set-STD-/151054976777?pt=Motors_Car_Truck_Parts_Accessories&hash=item232b940709&vxp=mtrGM gaskets and bolt for head 135$ http://www.improvedracing.com/gasket...217-p-261.html
GM oil pan gasket 30$ http://www.improvedracing.com/gasket...39b5d448e21afc
GM Crank Bolt 6$ http://www.lingenfelter.com/mm5/merc...1#.UvBCaE2Ybcs
Timing Cover Gasket Set 59$ http://www.ebay.com/itm/Fel-Pro-TCS4...-/400643870712
4 x GM LS2 Lifter Trays 32$ http://www.texas-speed.com/p-222-gm-...fter-tray.aspx
GM LS7 Lifter Set 140$ http://www.texas-speed.com/p-309-gm-...7-lifters.aspx
MELLING oil pump hi pressure 115$ http://www.ebay.com/itm/Chevy-6-0-6-...-/310837762925
GM Oil "Barbell" ?
GM Oil Pump Seal (Orange Blue Black Green ???)
GM Rear Cover Gasket ?
GM Rear Cover Seal ?
2300$ all new
And have to add :
* Stage 2 Rebuild Kit for T56 Corvette 905$ http://www.thegearbox.org/catalog/it...25/9379737.htm
* OD SFI balancer 340$ ttp://www.jegs.com/i/JEGS+Performance+Products/555/516253/10002/-1
* New belt ?
more than 3600$
02-03-2014, 11:33 PM
#8
Le Mans Master
Not sure what your budget is, my buddy has the following used parts for sale:
Forged Lunati 4" stroker crank
Forged Oliver rods
LS2 block - tapped for 1/2" head studs, machined for (included) DM Performance engine girdle
Forged Diamond Pistons & pins - part no 11521
Bore 4.03
Stroke 4.000
Rod 6.125
C.D.1.115
Weight 463
Pin .927 x 2.500
CC’s -15.0cc
Compression at 62cc = 10.5
Compression at 66cc = 10.0
Compression at 70cc = 9.8
Everything came from the same short block, so basically it's a complete package that needs a refresh (hone/rings, polish crank/bearings, assemble)
Parts are $3k + shipping
Parts/Refreshed/Assembled by Jim Bowen Racing Engines $4K + shipping (requires 1K deposit)
Forged Lunati 4" stroker crank
Forged Oliver rods
LS2 block - tapped for 1/2" head studs, machined for (included) DM Performance engine girdle
Forged Diamond Pistons & pins - part no 11521
Bore 4.03
Stroke 4.000
Rod 6.125
C.D.1.115
Weight 463
Pin .927 x 2.500
CC’s -15.0cc
Compression at 62cc = 10.5
Compression at 66cc = 10.0
Compression at 70cc = 9.8
Everything came from the same short block, so basically it's a complete package that needs a refresh (hone/rings, polish crank/bearings, assemble)
Parts are $3k + shipping
Parts/Refreshed/Assembled by Jim Bowen Racing Engines $4K + shipping (requires 1K deposit)
02-04-2014, 12:01 AM
#9
Le Mans Master
If you come across heads with bigger holes than you need, ARP makes insert washers to make up the difference.
(they are shaped like a top hat, up side down)
The head dowel pins stay the same, which position the head.
02-04-2014, 12:17 AM
#10
Le Mans Master
Yes, head bolt holes need enlarged & Cometic makes gaskets for 1/2" studs.
If you come across heads with bigger holes than you need, ARP makes insert washers to make up the difference.
(they are shaped like a top hat, up side down)
The head dowel pins stay the same, which position the head.
If you come across heads with bigger holes than you need, ARP makes insert washers to make up the difference.
(they are shaped like a top hat, up side down)
The head dowel pins stay the same, which position the head.
02-05-2014, 12:20 AM
#13
Drifting
You are making your power from the blower and not how many cubes you have. There are LOTS of people who use the stock crank till 800+ hp. I would rebuild your bottom end with the stock crank, forged rods and pistons. Save the $800ish on the crank.
