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05-22-2016, 07:59 PM #1
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Aftermarket second gen LTX block.
I have been planing a build and during my research it appears that the stock GM LTX block detortes around 1,000HP. I'm looking to see if there is an aftermarket block at will handle 1,000HP or without distortion and retain the second generation LTX Block characteristics?
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05-22-2016, 08:18 PM #2
The FABRICATOR!
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No available aftermarket options at the moment. There are a few places that guys are trying to get to cast some but who knows if it will ever happen.
The factory block can handle a good amount of power actually. Just today a guy posted an 8.1 second 1/4 mile slip and that setup makes 1200 hp. Same guy that built Stefans car (which ran a 4.8 1/8 mile). I know tony shepherd has made 4 digit numbers as well. These are all rear wheel numbers so crank hp is probably in the 1400-1500 range. Splayed mains, half fill, and a good machine shop can get you fixed up with something that will meet your goalsChris
1985 Monte Carlo SS
Mods: 9:1 383 LT1, Ported Trick Flow heads, D1SC Procharger, 4L80E, 3.50 9"
Check out the M122 MCSS build thread here!
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05-22-2016, 08:43 PM #3
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@firebird_1995 thank you for the information.
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05-22-2016, 08:46 PM #4
"The Rock"
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Very well explained Chris.
LTXtech.com IS my drug...
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Our BIG MOMENT @ the 2012 LTXshootout
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1996 Camaro Z28: RIP 09/25/2016
1994 Trans Am GT: SOLD 05/2017
1985/1996GS clone: SOLD
1996 Impala SS H/C, LT, with true dual exhaust, 4.10s, lowered, with CPT trans, many cosmetic mods, and a whole lot more to come...
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05-23-2016, 08:38 AM #5
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Supporting Member
Ellwein has built a few in that territory, half fill seems to be the way to go. He said he has seen bore distortion in all of them, but not enough to affect ring sealing abilities
Originally Posted by Camaro96
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1994 Firebird Formula 381 stroker - Carrying the torch! - 9.90 @ 134.3mph on a 200 shot
The wrench/driver for LTConvert's 94 Z28- Ellwein 383/LE Trickflows/ D1SC / CPT Ultra Pro Race 4L60E
10.78 @ 125mph. Shooting for 9.99 for Frank Cahall!
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05-23-2016, 12:22 PM #6
LTx Guru
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George Baxter made 1,125 flywheel HP with a 4-bolt main Corvette block, straight cap bolts, no fill. After he decided to move up to a Gen 1 aftermarket block, he sold his LT1 block to a member here. The block was closely examined by Second Street Speed, who built Baxter's engine and determined to be in excellent shape. Cliff then proceeded to build a high HP nitrous motor using the block, but I don't know the history beyond that decision.
SOLD - GONE TO A (VERY) GOOD HOME ! - 94 Formula A3+1: 381ci forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / CC solid roller / TH400+GearVendors OD / 4.11 Strange 12-bolt / 300-shot N2O / Spohn Suspension / roll bar / MoTeC M48 Pro engine management system /a few other odds 'n ends.
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