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04-16-2007, 10:46 AM
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#1
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Join Date: Jul 2006
Location: Hamilton, Nj/Glassboro, Nj
Posts: 799
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Lt4 Conversion
whats an lt4 conversion all about--hp increase,,sound,,money??
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93 Civic HB 1.5L-70hp :-p-Sold
94 Camaro Z28-CAI with bellow, LCAS, 3.73 gears, A4, 275/40/zr17-silver Zr1's, Magnaflow Stainless steel exhaust. For Sale-This Spring Best 1/4 Time-13.5-Sold
CURRENT RIDE- 99 Z28 with Ground Effects Slp intake Exhaust and Short Throw shifter- best 1/4 -13.34@105.6 New mods yet to be tested->Pacestter long tubes--->Tune by TTP= 349 RWHP 362 Ftlbs
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04-16-2007, 11:05 AM
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#2
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Join Date: Jul 2006
Posts: 513
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My dad looked into one for his '96 Impala SS. I think it is the same heads/cam (valve train), and intake manifold as the LT4 Vette engine. i think it was +/- $2K. HP increase i want to say around 45-50, but DON'T quote me on that. As far as sound, it will depend mostly on your current exhaust setup (headers, cats/no cats, muffler, ect). I don't believe it is a "lumpy cam".
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04-16-2007, 11:08 AM
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#3
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Join Date: Jul 2006
Posts: 513
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04-16-2007, 12:11 PM
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#4
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Stalker
Join Date: Aug 2004
Posts: 12,080
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if you are going lt4 heads/cam, you might as well just go aftermarket for more power/less money.
the lt4 intake flows somewhat better then the stocker ive heard but not sure if itll fit stock lt1 heads.
IMO a ported lt1 intake and aftermarket heads/cam combo would be a better investment.
Last edited by V; 04-16-2007 at 12:12 PM.
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04-16-2007, 02:33 PM
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#5
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Join Date: Aug 2004
Location: Somerset County
Posts: 5,559
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Quote:
Originally Posted by SmokingSS
if you are going lt4 heads/cam, you might as well just go aftermarket for more power/less money.
the lt4 intake flows somewhat better then the stocker ive heard but not sure if itll fit stock lt1 heads.
IMO a ported lt1 intake and aftermarket heads/cam combo would be a better investment.
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toothless billy bob joe ported lt1 heads will outflow lt4 heads in every scenario. an lt4 intake flows no better than a stock unported lt1 intake. the lt4 cam is a pussy cam to say the least(.525 lift on 1.6 rockers iirc). Go with either an advanced inductions head/cam package or a lloyd elliot head/cam package. Both will port your stock heads and send you a cam matched to the head porting. you can also have them port your intake manifold for around 10 extra hp over the heads/cam.
If you're looking to do this soon let me know as I have a pair of lt1 heads that are all cleaned up and ready to get sent off to lloyd with brand new beehive springs(the same springs he uses on his le2 and le3 port jobs). Sending him the valvetrain hardware will drop the price of the portwork $300
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1999 Corvette FRC
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04-16-2007, 10:45 PM
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#6
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Join Date: Feb 2005
Location: Hamilton, NJ
Posts: 75
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throw some longtubes on it and save for an ls1 
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2005 PBM M6 Red interior GTO
-CNC ported LS6 heads, PAC Springs, HPE-C cam, SLP Under-drive pulley, 160 stat, Harland Sharp Rocker arms, Volant CAI, MSD Wires, Ported TB and Stage 2 Intake by Jeremy Formato, ARH 1 7/8 Long tubes and high flow cats, MagnaFlow CatBack, GMM race shifter, Pedders street 1 bushings, Textralia OZ700 clutch, Gforce Halfshafts
455RWHP/411RWTQ
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04-26-2007, 04:36 PM
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#7
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10 Second Club; Has fan club
Join Date: Dec 2005
Location: Delmont nj
Posts: 4,369
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Quote:
Originally Posted by Blackwizard222
throw some longtubes on it and save for an ls1 |
im with stupid on that one!
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01' Z06 62k miles. Vararam, Longtubes, off road xpipe, tuned by me. Times TBA
2001 Corvette, Bolt ons , tuned 10.75@124.56 mph 1.38 60' Sold
1997 Saturn Sc1 5spd DOHC swapped
Bolt ons, decked head, stock intake cam on exhaust side, lotsa weight redux
13.22@102.32 mph 1.93 60'
12's on moda? One day
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