Engine SwapEverything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.
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How much gain could I possibly get after fully porting, intake, trottle body, heads ? and maybe bigger injectors ???
__________________ 93 - LT1 POWERED
Headmans Longtubes, full dual, Hurst V-Matic 2, 2002 4th gen leather seats,Custom dash with Phantom Autometer gauges, GTA molded door panels, Hotchkis Panhard,boxed control arms, Airfoil. Sub frame connectors, 17 X 9.5 ARE rims with 275'' All around, Zexel posi, 3.42 gears.
I'm think it might be better to just save my money and to put it towards a supercharger...
I'm getting tired to work on that old car.
__________________ 93 - LT1 POWERED
Headmans Longtubes, full dual, Hurst V-Matic 2, 2002 4th gen leather seats,Custom dash with Phantom Autometer gauges, GTA molded door panels, Hotchkis Panhard,boxed control arms, Airfoil. Sub frame connectors, 17 X 9.5 ARE rims with 275'' All around, Zexel posi, 3.42 gears.
search the LT1 tech boards at Cz28.com, some of those n/a cars are pretty quick.. see a lot of guys in the 12s with bolt ons, more with bolt ons and a cam, and arent 4th gen cars heavier than 3rd gens? also a higher stall converter with those 342s eventually will give you some nice results too..
Ported heads are a great idea. I found a guy who does great work cheap. He will port heads for 400 plus machine work.
My car with these heads and a hot cam should put down 370 whp with an a4
Kory
__________________ 88Iroc lt1 355, mahle pistons, compstar 6"rods , stock crank internally balanced, 4 bolt studded block, Advanced induction dominator heads Ai 22x/23x cam, holley 58mm tb, 1.6 comp cams rrs,home built equal length lt headers,custom built cat back,t56, street twin, hurst shifter, ls1 brakes front and rear. ronal r15s, homebuilt 8.8 rear fms 4:10 gears. Dyno numbers and new track times to come.
Hotrod air underdash A/C and 01 ta dash new for 09.
400 hp should be no problem. Heck with my home p&p heads a xe 230-236 plus some other mods including a stall and 3.73 I should be capable of low 12's. I will let you all know if I reach my goal in the spring.
IMO you will not see much gain by the throttle body or intake, but the heads is where the better hp numbers will come from.
__________________
1990 Camaro RS
93 355 LT1 installed, 12.52@114
LS1/T56 on its way in 2011
98 Jeep Cherokee on 34's, 3.5" Lift, EPi 9.0 Superwinch
07 Chevy Avalanche stock
01 Z28 for parts PM me for any parts you are looking for
__________________ 93 - LT1 POWERED
Headmans Longtubes, full dual, Hurst V-Matic 2, 2002 4th gen leather seats,Custom dash with Phantom Autometer gauges, GTA molded door panels, Hotchkis Panhard,boxed control arms, Airfoil. Sub frame connectors, 17 X 9.5 ARE rims with 275'' All around, Zexel posi, 3.42 gears.
be careful not to throw around "400 rwhp" so casually..
my setup should be there now, but I need better headers ( I don't like our longtube choices so I am getting SLP) but the shorty route may stop me short..
Intake wise I am pretty good, but upgrading from a 52mm tb to a 58 is worth a few ponies, so is porting the intake (which is done already).. etc..
I am just saying that it was relatively easy to get a solid driveable and repeatable 373 hp and 360 tq.. to get those last 27 rwhp will take an extra 1000+ dollars.. on top of the cam 400, Lloyd Elliot headwork 1000, rockers 350, lifters 200, injectors 220, pushrods 110, and dynotune 400...
and now a better clutch and the billet flywheel icing on top, 700...
Fast is not cheap, it is fun but not cheap.. the next LTx is going forced induction to keep up with the LSx crowd..
__________________ 82 T/A LT1 everything old is new again.
355, studded mains, stock crank, 6in scat rods, Mahle pistons, OBD1 converted, delteq, LE Heads, pac1518s, pro-magnums, LE2 cam, stock lifters, LE intake, 52mm throttle body, Programmed by CAM, hedman lts, mufflex exhaust, LS1 (ebmiller) brakes, 02 M/C, eibach sportline front and pro rear springs, jegs subframes and torque arm, hotchis lcas, spohn panhard, bmr upper panhard, TDS swaybars/wonderbar, inland empire driveshaft, pst bushings, bilsteins...
Ported heads and a cam, even with all the bolt ons, isn't a guaranteed 400rwhp by any means, esp if they're ported by an amateur. 360-370 is fairly easy to get, but more than that requires a more radical setup than average.
__________________ 1981 Corvette LSX/T56 Project
1987 Trans Am
1985 Trans Am
1997 Camaro SS #359 383 LT1 - Sold 8/12/09
There's a guy on CamaroZ28.com, Lloyd Elliot, from what I hear he does some bad *** porting! His sn's Nightrain66 I think, he's in TX. He's got 3 packages, that he custom grinds cams for, and I've heard of up to 400HP with just the porting and custom grind cam.
I believe J's ta has Lloyds package. I have a set of his heads with my hot cam. They seem to work very well. I am trapping at 112mph. I hope to surpass the 4oowhp mark later this year with a cam swap and a few other chaanges.
Lloyd is a great guy I would do business with him anytime.
Kory
