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03-03-2011, 10:37 AM
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#1 |
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Always a work in progress
Join Date: Jun 2007
Location: Harker Heights, TX
Posts: 1,599
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427 lsx
I have a hard time with the search function on some websites out here in the sandbox and just needed to know if someone can provide me some info on building a 427 LSX based motor. It is a dream motor that I will start collecting parts for once I get my 6.0 swapped into my truck. I really need the best bore/stroke combination. I am looking at 2 different routes as far as what I would consider "done" in the engine compartment either a 427(I would just like to say I have a 427 under the hood) or a turbo'd 390" LSX based motor.
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USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168 |
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03-03-2011, 12:45 PM
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On a budget like Fred Sanford
Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
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Re: 427 lsx
I'd want a 4.125 bore and 4" stroke to get your 427ci. You need an LS7 block or aftermarket. You can also sleeve an aluminum factory block, but it's pricey. People are doing 427ci LS3 strokers with 4.07" bore and 4.125" stroke, but that makes for a really short piston IMO. If you're gonna spend the money, go for the biggest bore you can afford so you can take advantage of todays cylinder head technology.
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'85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD Last edited by swb85; 03-03-2011 at 12:45 PM. |
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03-04-2011, 12:48 AM
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#3 |
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Always a work in progress
Join Date: Jun 2007
Location: Harker Heights, TX
Posts: 1,599
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Re: 427 lsx
Thanks alot SWB85 once again you show me why I like this board compared to others! How is that 383 treating you?
__________________
USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168 |
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03-04-2011, 09:44 AM
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#4 |
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On a budget like Fred Sanford
Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
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Re: 427 lsx
Still smokin the tires until I hit 3rd gear.
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'85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD |
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03-05-2011, 12:34 AM
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#5 |
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Always a work in progress
Join Date: Jun 2007
Location: Harker Heights, TX
Posts: 1,599
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Re: 427 lsx
sweet!! I still love to watch your in cab driving video, youknow the one where you show off your sweet legs!!!
__________________
USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168 |
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03-06-2011, 05:51 PM
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#6 |
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On a budget like Fred Sanford
Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
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Re: 427 lsx
I do get lots of leg compliments.....thanks
Posted via Mobile Device
__________________
'85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD |
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