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407Ci Ls Chevy Engine On The Dyno

407ci LS Chevy Engine - Expert LS

BY THE NUMBERS
407ci LS Chevy
Block: LS2, overbored
Bore: 4.022 inches
Stroke: 4.00 inches
Displacement: 407 ci
Compression ratio: 11.5:1
Crank & rods: Callies Compstar
Camshaft: COMP Cams hydraulic roller
Timing chain: Cloyes
Lifters: Crane Billet
Pushrods: COMP Cams 7.500
(5/16-inch diameter)
Springs: AFR 8019
Installed height: 1.770
Spring load closed: 160 pounds on the seat
Spring load open: 410 pounds at 1.160
Retainers: AFR 7-degree Titanium
Valve locks: AFR 7-degree beadlock
Cam duration, intake: 242 at .050
Intake lift: .610 inch
Cam duration, exhaust: 242 at .050
Exhaust lift: .610 inch
Rocker arms: Yella Terra Ultralite
Rocker ratio: 1.7/1.7:1
Lobe separation: 114 degrees
Installed centerline: 111 degrees
Ring pack: Wiseco GFx 1.2/1.2/3mm oil
Ring end gap: .018 top/.022 second
Pistons: Wiseco forgings with coated skirts
(.004-inch piston-to-wall)
Main studs: ARP
Rods: Callies Compstar 6.125-inch H-beam
Main bearings: Clevite H
Rod bearings: Clevite HN
Main journal diameter: OEM
Rod journal diameter: 2-inch journal
Main clearance: .0018 inch
Rod clearance: .0021 inch
Cylinder heads: AFR 215 LSx
Head bolts: ARP studs
Intake manifold: FAST 92
Ported by Tony Mamo
Intake flow: 320 cfm at .600
Exhaust flow: 254 cfm at .600
Intake valve: REV stainless 2.040 inches
Exhaust valve: REV stainless 1.600 inches
Head gaskets: Fel-Pro 1041 (.041 inch)
Piston/head clearance: .030 inch
Engine gaskets: OEM
Throttle body: 90mm Nick Williams
Headers: American Racing 1.875 inches
with 3-inch merge collector
Ignition: OEM
Spark plug wires: OEM
Damper: ATI with 10 percent U/D
steel hub with aluminum shell
Water pump: Meziere electric
Oil pan: stock LS1/LS6 ("batwing" pan)
Oil pump: stock ported by Mamo
Oil: AMSOIL 5W-30
Oil filter: Fram

Comp Cams Inc.
3406 Democrat Road
Memphis
TN  38118
800-999-0853
www.compcams.com 		GM Performance Parts
P.O. Box 33170
Detroit
MI  48232
800-577-6888
www.gmperformanceparts.com
Federal Mogul/Fel-Pro/Speed-Pro
800-560-1400
www.federal-mogul.com 		MAHLE Clevite
7670 Hacks Cross Road
Olive Branch
MS  38654
662-893-2860
www.mahleclevite.com
ARP (Automotive Racing Products)
1863 Eastman Avenue
Ventura
CA  93003
800-826-3045
www.arp-bolts.com 		Yella Terra
Meridian
MS
601-485-3355
www.yellaterra.com
FAST (Fuel Air Spark Technology)
3400 Democrat Road
Memphis
TN  38118
877-344-8355
www.fuelairspark.com 		Racing Engine Valves, Inc. (REV)
2610 Windsor Ave
West Palm Beach
FL  33407
800-398-6348
www.revvalves.com
Wiseco Performance Products
7201 Industrial Park Blvd.
Mentor
OH  44060
440-951-6600
www.wiseco.com 		Callies Performance Products
901 South Union St
Fostoria
OH  44830
419-435-2711
www.callies.com
AMSOIL
925 Tower Ave.
Superior
WI  54880
800-777-8491
www.amsoil.com 		Meziere Enterprises
220 S. Hale Ave.
Escondido
CA  92029
800-208-1755
www.meziere.com
ATI Performance Products
6747 Whitestone Road
Baltimore
MD  21207
877-298-5039
www.atiracing.com 		Air Flow Research (AFR)
28611 W. Industry Drive
Valencia
CA  91335
877-892-8844
www.airflowresearch.com
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