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#1
10-25-2005, 10:34 PM
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LS1 and LQ9
The LQ9 motor is a 6 liter motor isnt it? What are the differences in the general design between the two. I know you can use the lq9 heads on an ls1. And are all ls1's all aluminum blocks? All the pictures im seeing of these motors makes the metal look like aluminum.
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92 z28 camaro 5.7 TPI current - slp intake runners and base-BBK 52mm throttle body-MSD 8.5mm wires, blaster coil, and 6AL Box-edelbrock headers-160 degree stat.-hotchkis strut tower brace waiting in the garage - LQ4, milled heads 317 casting (10.5 to 1), hardened pushrods, ported LS6 oil pump, manley dual spings with titanium retainers, MTI X1 cam, hawks longtube headers 
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#2
10-25-2005, 10:38 PM
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Re: LS1 and LQ9
LS1 = Aluminum
LQ9 = Iron LS1 is on the stand for this pic. LQ9 is on the floor. The blocks are very similar. The LQ9 has a 4" bore, and the LS1 has a 3.898" bore. 
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1999 Pontiac Trans Am WS.6 #1747 Stock'ish'
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#3
10-25-2005, 10:44 PM
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Re: LS1 and LQ9
oh.....so you put the LQ9 in your car? cool....I was wondering why people didnt do this....Can you get an LS1 bored to 4" without hitting anything?
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92 z28 camaro 5.7 TPI current - slp intake runners and base-BBK 52mm throttle body-MSD 8.5mm wires, blaster coil, and 6AL Box-edelbrock headers-160 degree stat.-hotchkis strut tower brace waiting in the garage - LQ4, milled heads 317 casting (10.5 to 1), hardened pushrods, ported LS6 oil pump, manley dual spings with titanium retainers, MTI X1 cam, hawks longtube headers
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#4
10-25-2005, 10:45 PM
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Re: LS1 and LQ9
...i guess you wouldlve done that if it was possible......
__________________
92 z28 camaro 5.7 TPI current - slp intake runners and base-BBK 52mm throttle body-MSD 8.5mm wires, blaster coil, and 6AL Box-edelbrock headers-160 degree stat.-hotchkis strut tower brace waiting in the garage - LQ4, milled heads 317 casting (10.5 to 1), hardened pushrods, ported LS6 oil pump, manley dual spings with titanium retainers, MTI X1 cam, hawks longtube headers
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#5
10-25-2005, 10:46 PM
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Re: LS1 and LQ9
Yeah...the LS1 would need re-sleeved to bore it out that big.
My LQ9 block isn't bored at all. Longer stroke though....making it a 402ci.
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1999 Pontiac Trans Am WS.6 #1747 Stock'ish'
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#6
10-25-2005, 10:51 PM
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Re: LS1 and LQ9
so lemme ask you this. Youll probably get 550-600hp with your new motor. Couldnt you easily get that kinda power out of the ls1?
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92 z28 camaro 5.7 TPI current - slp intake runners and base-BBK 52mm throttle body-MSD 8.5mm wires, blaster coil, and 6AL Box-edelbrock headers-160 degree stat.-hotchkis strut tower brace waiting in the garage - LQ4, milled heads 317 casting (10.5 to 1), hardened pushrods, ported LS6 oil pump, manley dual spings with titanium retainers, MTI X1 cam, hawks longtube headers
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#8
10-25-2005, 11:05 PM
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Re: LS1 and LQ9
But not just motor? Do you think that the stock forged internals could handle 500 hp? Im back to my LS1 swap idea and im thinking I might be able to find one to rebuild. And if the stock internals will work for me then thats a few less things to buy. With the efficiency of the ls1 I can get a gob of power and then still get decent mileage and good durability with it. And I can get the tubular k member and a arms while im at it. Bigest thing I worried about is the exhaust. I thing id have to get custom work done to fit the ls1 manifolds to bolt up to the stock pipes. Everything else seems to be pretty straight forward as to what has to happen. Whats stock fuel pressure for an LS1 system?
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92 z28 camaro 5.7 TPI current - slp intake runners and base-BBK 52mm throttle body-MSD 8.5mm wires, blaster coil, and 6AL Box-edelbrock headers-160 degree stat.-hotchkis strut tower brace waiting in the garage - LQ4, milled heads 317 casting (10.5 to 1), hardened pushrods, ported LS6 oil pump, manley dual spings with titanium retainers, MTI X1 cam, hawks longtube headers
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#9
10-26-2005, 06:52 PM
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Re: LS1 and LQ9
500 RWHP with an all motor LS1 is very tough.
Needs the best heads and biggest cam. Up the compression half a point or so as well. And of course, all the bolt-ons. If you are looking for a good running daily driver with good power, a very good set of heads and an average sized cam would probably be best. Probably see right around 425 RWHP with decent mileage and a decent daily driver.
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1999 Pontiac Trans Am WS.6 #1747 Stock'ish'
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#10
10-26-2005, 07:50 PM
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Re: LS1 and LQ9
yup, im trying to get as close to 450-460 as i can before spray
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#11
10-26-2005, 09:14 PM
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Re: LS1 and LQ9
.....so the vette ls1 with 405hp is really close to its limit?
__________________
92 z28 camaro 5.7 TPI current - slp intake runners and base-BBK 52mm throttle body-MSD 8.5mm wires, blaster coil, and 6AL Box-edelbrock headers-160 degree stat.-hotchkis strut tower brace waiting in the garage - LQ4, milled heads 317 casting (10.5 to 1), hardened pushrods, ported LS6 oil pump, manley dual spings with titanium retainers, MTI X1 cam, hawks longtube headers
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