How about a Z06 5.3?
How about a Z06 5.3? I found a LS4 engine with 30,000 miles on E bay that I'm thinking about buying. I just don't want to pay for the shipping. I was thinking about putting in a Z06 cam, lifters, valley tray, comp cams push rods, 130lb springs with Harland Sharp 1.7 rockers, and a Z06 intake. I will have the stock exhaust manifolds ported and possibly extrude honed and coated buy a local shop. I should be able to do all of this for 2,500. I just need to figure out a way to pull my engine.
I think I can do this from the top with out having to drop the cradle. The trans will also get some 3.69 gears while every things apart. If I do get this engine, then I wouldn't install it initial next spring, and if I don't get it, then I may use my engine but I like the idea of having a spare.
I figure 370hp/350tq
I think I can do this from the top with out having to drop the cradle. The trans will also get some 3.69 gears while every things apart. If I do get this engine, then I wouldn't install it initial next spring, and if I don't get it, then I may use my engine but I like the idea of having a spare.I figure 370hp/350tq
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Joined: Dec 2005
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From: CT
correct... the truck/rwd 5.3 LS4's are different blocks/parts - they are longer, and won't fit in our FWD vehicles.
but if you ARE talking about a fwd 5.3 from another fwd car like ours, I don't think the cam nor the z06 intake would fit anyway...
but if you ARE talking about a fwd 5.3 from another fwd car like ours, I don't think the cam nor the z06 intake would fit anyway...
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06MonteSS / DiabLew Tune
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06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
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TECH Resident
Joined: Apr 2003
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From: here, ny
if its an LS4, then its the fwd version... i think the Z06 cam would move the power band up too high for that small of an engine... the old school 211/218 cam would make a good choice i believe...
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5.7 Z06=71.05 hp per liter and with the same parts on a 5.3 should equal 376.5 hp but at a higher rpm
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On The Tree
Joined: Jul 2002
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From: Mass
The only concern with running the Z06 top end would be disabling the dOd and clearance with the stock hood
block/parts are the same length. only the front drive accessories are shorter. Thats why the 243 casting head is from the z06 5.7 liter motor. If the block were shorter they would not fit!
The only concern with running the Z06 top end would be disabling the dOd and clearance with the stock hood
The only concern with running the Z06 top end would be disabling the dOd and clearance with the stock hood
Op good luck it sounds like it will be a fun ride when your done. Then throw a 125 shot into the mix and you'll have a bad *** FWD.
Doug
block/parts are the same length. only the front drive accessories are shorter. Thats why the 243 casting head is from the z06 5.7 liter motor. If the block were shorter they would not fit!
The only concern with running the Z06 top end would be disabling the dOd and clearance with the stock hood
The only concern with running the Z06 top end would be disabling the dOd and clearance with the stock hood
Last edited by DavidGXP; Jul 13, 2008 at 02:39 PM.
On The Tree
Joined: Jul 2002
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From: Mass
Maybe I'm blind but where did the op say anything about heads? Also hes talking about a LS4 which is a FWD and his car is FWD. He doesn't want to put a 5.7 in his car he was asking about a Z06 CAM in a LS4.
Op good luck it sounds like it will be a fun ride when your done. Then throw a 125 shot into the mix and you'll have a bad *** FWD.
Doug
Op good luck it sounds like it will be a fun ride when your done. Then throw a 125 shot into the mix and you'll have a bad *** FWD.
Doug
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From: CT
aaah, gotcha...
I thought I had seen/read somewhere that they WERE shorter, that they were different from the ones in the trucks...
sorry, my bad...
I thought I had seen/read somewhere that they WERE shorter, that they were different from the ones in the trucks...
sorry, my bad...
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06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
Staging Lane
Joined: Aug 2007
Posts: 75
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From: Ottawa,Canada
This engine is adapted for transverse front-wheel drive applications. In order to fit into the smaller engine compartments designed for V-6s, the LS4 engine block had to be shortened by one inch.
No, the block was not shortened by an inch.
The crankshaft was shortened by an inch - partly at the snout since there is a single belt drive, and partly on the flange where the flexplate mounts. Other than that the block retains the same bore and main bearing spacing as the LS1/6 blocks.
The LS4 has a more compact accessory drive and waterpump system than the LS1/6, which is what accounts for the overall decrease in engine length.
TECH Enthusiast
Joined: Jun 2008
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From: Zeeland, MI
I thought that GM took the LS1 and shortened it 13mm overall.
10mm at the accessory drive = 0.393939 in
3mm at the crank = 0.1182 in
Also 1 inch is 2.54cm, so really they only shortened the entire engine by 0.5122 inches overall.
10mm at the accessory drive = 0.393939 in
3mm at the crank = 0.1182 in
Also 1 inch is 2.54cm, so really they only shortened the entire engine by 0.5122 inches overall.
Apparently I need to read the stickies again too. 13mm it is, just 1/2 inch on the crank.
Staging Lane
Joined: Dec 2004
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I would also point out that the LS4 is a GenIV block so it actually has more in common with the LS2. I understand the concept you were conveying, just wanted to make sure others that are confused understand the architecture of the block.
Chip
Chip