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Speed Inc 427ci HP #?

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Old Mar 31, 2007 | 09:02 PM
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Default Speed Inc 427ci HP #?

I saw that Speed inc has a good deal on there website, they have a 427ci built motor plus install for $16K. Just wondered what kind of Horse Power u could expect from this engine. I know they dont give cam specs, but say u had something along the lines of 242/246 111 or something bigger.

F-Body LS1 Extreme 427 Close
INCLUDES:
-MTI Darton resleeved block
-Billet 4.00” stroke forged crank
-Billet 6.125” connecting rods
-Diamond Custom 4.125” pistons
-Diamond Pro-select rings
-High performance bearings
-All Gaskets, seals and hardware
-Custom Comp Cams Roller camshaft
-Comp Cams Lifters
-Comp Cams chrome moly pushrods
-Double roller timing chain
-SLP blueprinted oil pump
-ASP SFI approved underdrive pulley
-RGR, MTI, Patriot, or GTP stage 3 premium cylinder heads
-GM LS6 Intake manifold
-Fully balanced/blueprinted/Finish hone w/torque plate, assembled
-Hooker coated or SLP headers
-Offroad y-pipe
- Spec stage 3X clutch
-Fidanza aluminum flywheel
-Taylor 409 Race wire 10.4mm LS1 Red
-NGK spark plugs
-Hypertech 160 Powestat
-SLP, Whisper or MTI Induction lid
-SLP high flow bellows
-High flow 30# Injectors
-Everything Professionally Installed
-Fully Professionally Dynotuned
$15,999 or
$17,999 with 2 year limited warranty
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Old Mar 31, 2007 | 09:06 PM
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right around 540 to the rear wheel is a good stab. could be 525, could be 560. plus or minus 20 though, depends on a lot of other variables. what rearend? auto or 6 sd? what size rims on the car.
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Old Mar 31, 2007 | 09:12 PM
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We have had 427 package put down 550rwhp in a Z06.

Have another 427 being installed in April, cept with C5R block and ETP 245 heads

lemme know if you have any questions?
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Old Mar 31, 2007 | 09:24 PM
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Originally Posted by wvaboy
right around 540 to the rear wheel is a good stab. could be 525, could be 560. plus or minus 20 though, depends on a lot of other variables. what rearend? auto or 6 sd? what size rims on the car.
it would be with a 12bolt w/4.11 and a M6. rims would be 17 inch TT2 or stock 10 spoke SS rims.
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Old Mar 31, 2007 | 09:24 PM
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Originally Posted by Fraser@SpeedInc
We have had 427 package put down 550rwhp in a Z06.

Have another 427 being installed in April, cept with C5R block and ETP 245 heads

lemme know if you have any questions?
PM sent
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