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EXAMPLE BUILD SHEET
CHEVROLET 420 ENGINE $10,825
570LBS-FT @ 4900RPM 604BHP @ 6200RPM
PARTS:
SHORT BLOCK
$450 2 Bolt Main 400 Block (OPTIONAL NEW DART BLOCK $2050)
$250 MAIN BEARING SUPPORT GIRDLE PRW0940000
$30 Cam bearing Heavy Duty DUR-CHP8
$10 Brass Freeze Plugs PIO-PE-100-BR
$10 Lifter Oil Restrictors B/B-48000
$550 Crankshaft 400 Mains 3.875” Stroke DSCH4003875
$420 Light Weight I-Beam 4340 Rods 6.00” RP666P
$750 JE Racing Pistons 182036 Clearance 0.005 Compression Ratio 11.7:1
$100 Plasma-Moly Rings JE 182041 1/16 3/16 Top Ring Gap 0.018
$70 Main Bearings MCH-MS-1038H Clearance 0.0025
$75 Rod Bearings MCH-CB-663H-001 Clearance 0.0025
$135 Harmonic Balancer SFI 90000
$25 Balancer Bolt ARP-134-2501
$60 Flex Plate SFI SOM-FP350
$10 Flex Plate Bolts ARP-100-2901
$2945
LONG BLOCK
$1500 AFR CNC Street Ported Heads 210cc 76cc AFR-1050
$120 Drill Steam Holes
$300 Steel Solid Roller Comp Cams Camshaft 12-000-9 X4875/4876-108
ADV- 286/292 @.050 248/254 .614/.621 LS-108
$100 Poly Distributor Drive Gear for Steel Core Cam
$320 Roller Lifters Comp Cams
$5 Cam Thrust Button CompCams COM-202
$105 True Roller Billet Steel CP1001
$130 Chrome-Moly Push Rods 21407300 7.30”
$290 Chrome-Moly Roller Tip Rockers 1.6:1 COM-1305-16
$75 Heads Gaskets FEL-1014
$20 Intake Gasket FEL-1206
$65 ARP Head Bolts ARP-134-3601
$205 Edelbrock Super Victor Manifold EDL-2925
$100 Rocker Stud Girdle Howard 43101K
$3335
COMPLETED LONG BLOCK
$50 Oil Pump MOR-22135
$10 Pump Stud ARP-230-7003
$10 Pump Driveshaft MEL-IS-55E
$210 Deep Sump Oil Pan MIL-31167
$20 Oil Pan Gasket MIL-40100
$35 Aluminum Timing Cover SS-1310
$90 Chrome Valve Covers mor-68335
$10 Timing Tab
$45 Engine Bolts
$10 Pump Block-off Plate
$500
TURNKEY COMPLETION
$610 Custom Built Carburetor
$50 Fuel Line BG-140020
$10 Carburetor Gasket & Studs
$210 Ignition Controller msd-6AL
$15 Oil Filter KN
$15 Oil filter Adapter
$15 8 Quarts Oil
$35 Spark Plugs Autolite AR-3933 0.035" gap
$15 Thermostat 180
$875
Parts: Total $7555
LABOR:
$800 CNC Machine Block
(Align Bore Torqueplate Hone 4.155” Zero Deck 9.000” 3.875” Clearanced)
$50 Deburr and Paint inside block
$170 Balancing
$100 Port Intake Mainifold
$700 Assemble Turnkey Engine with Camshaft Degreed
$750 Dyno Test Engine
Total $2570
TOTALS: $10,325 Freight $500 COMBINED TOTAL $10,825
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Serpentine drive - Headers -
Transmission - etc
GoTO Chevy ENGINES CLICK HERE
Raising the Bar in Performance Yet Again
Whopping 10% increase in flow at all valve lifts.
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3HP STARTER $250
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2.68HP STARTER $200
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GM STARTER $260
LS7 RACING LIFTERS $280 (7000rpm) * 88958689
GM Performance hydraulic roller lifter set for high performance applications. This new hydraulic roller lifter was developed by GM Racing and contains lightweight internal components and precision oil metering for increased valvetrain stability at high RPM’s. This part number is a set of 16-lifters.
This new lifter will work in all LS- engine applications and is specifically suited for race cams and high RPM applications. They can also be used as an upgrade for stock lifters and are suitable for street applications. These lifters were developed for the CTSV Cadillac Race Team that used the “short stroke” LS7 style engines that raced in the Grand Am Cup Series during 2005. If you recall these engines were built using the LS7 block, LS7heads, and LS7 intake but the sanctioning body required the teams to meet the 5.7-liter engine size of 346ci. There were several different combinations tried but most of these engines used a stroke of approximately 3.200”. The demand to make race winning horsepower with a short stroke guarantees the unavoidable element of high RPM’s.
Initial testing, before these new lifters were developed, showed a definite valvetrain stability problem above 7000-rpm’s. Several remedies were tried, but in the end it was determined that the lifter had the biggest contribution to the RPM limit. This new lifter has internal changes made to the hydraulic components which resulted in a significant RPM increase. After installing the new lifters, these engines were now making power at 8000-rpm and they regularly saw 8500-rpm’s without any problems! WOW! The CTSV dominated the first races, not only did the sanctioning body enforce an RPM limit on the short stoke Caddies but they eventually implemented more restrictions to limit the horsepower on these LS7 equipped 346ci engines.
As a reminder, hydraulic roller cam valvetrain stability is a function of many different variables; camshaft design (ramp acceleration), pushrods, valve springs, rocker ratios, spring pressures, valve weight, the weight of all valvetrain components, oil pressure, RPM, etc. It is imperative that you have sufficient spring pressures, quality push rods and lifters, proper lash adjustment, and the lightest valvetrain components you can afford to maintain accurate stability at high RPM’s. Match your components to meet your RPM range! We recommend a preload setting of 0.060” (cold) with these lifters, in most cases with adjustable rockers this is usually somewhere between 1-full turn and 1-1/2 from the “Zero-Lash” point. This is the same preload as a stock lifter
SBC BOOKS
 How Much Power Will I Make? 
 Changing Parts & Dyno Testing  the SBC  CLICK HERE 
Here is a 355cid verse a 427cid as tested by Popular Hot Rodding Magazine using the same heads and camshaft.
355 427
RPM TQ - BHP TQ - BHP
2600 346 - 171 507 - 251 increase 161TQ 80BHP
3600 422 - 290 549 - 376 increase 127TQ 87BHP
4600 456 - 399 556 - 487 increase 100TQ 88BHP
5600 444 - 474 475 - 507 increase 31TQ 34BHP
6000 425 - 486 418 - 478 loss 7TQ 8BHP
Power output depends on cam duration.
Long duration cams make more bhp, but have a rougher idle and less vacuum.
Anything above In. 236 @ .050" is short on vacuum for power brakes.
Shorter duration cam increase torque in the 2000rpm range. See Examples
eg. 383
In Dur tq @ 2500 tq @ 3500 tq @ 4500 peek bhp @ rpm
218 494 502 477 425 5000
224 489 507 494 447 5200
230 479 507 509 474 5500
236 465 500 441 495 5700
242 449 490 514 516 6000
eg. 395
In Dur tq @ 2500 tq @ 3500 tq @ 4500 peek bhp @ rpm
218 510 514 480 422 5000
224 506 520 498 446 5200
230 496 520 515 468 5500
236 482 514 522 495 5700
242 466 505 524 510 6000
DESKTOP DYNO COMPARISIONS
Wondering what horsepower numbers mean for drag racing?
Dyno Ratings See Here 
 CLICK FOR CALCULATORS
 
Make Huge Power Click Here
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HRM Cylinder Head Test 383 236/242 Comp Cam.
Advertised Intake Port 165cc Measured Port (178) @.400" Lift / .500" lift
Dart Iron Eagle S/S 165cc (178) 475lb-ft @ 3900 rpm 430hp @ 5700 rpm. 219cfm @ .4 / 222 @ .5
Dart Iron Eagle Platinum 215cc (215) 478lb-ft @ 4100 rpm 450hp @ 5600 rpm 220cfm @ .4 / 251@ .5
World Motown 220cc (220) 478lb-ft @ 3800 rpm 439 horses @ 5400 rpm. 222cfm @ .4 / 243 @ .5
RHS 200cc (200) 468lb-ft @ 3900 rpm 422hp @ 5500 rpm. 210cfm @ .4 / 233 @ .5
Vortec 170cc (185) 489 lb-ft of torque @ 3900 rpm 430hp @ 5300 rpm. 212cfm @ .4 / 210 @ .5
Edelbrock Performer RPM Aluminum 170cc (175) 49 lb-ft @ 3900rpm 452hp @ 5500 rpm 233cfm @ .4 244 @ .5
ProComp180cc (195) Aluminum 470lb-ft @ 4100 rpm 409hp @ 5600 rpm. 194cfm @ .4 / 231 @ .5
Trick Flow 195cc (195) Aluminum 496lb-ft @ 4000 rpm 455hp @ 5300 rpm. 215cfm @ .4 / 239 @ .5
every
unique
Basic 383 Stroker Engine
Turnkey Crate 420BHP 
Turnkey Crate 440BHP 
Custom Build Hot Street 383.jpg)
Custom Build 460BHP 383 
Turnkey Crate 500BHP Engine
Custom Build 500BHP 383 
Custom Build 550BHP 383 
Turnkey Crate 600BHP
Crate & Custom Build 434cid
Custom Build 600BHP+ 420 - 454cid
Custom Build 454cid
Custom Built 450 to 480cid
Autolite AR3924
SBC CRATE ENGINES
Custom Build Blower Motor
Custom Build Blower Motor
Dart Block Blower Motor
Crate ProCharger Motor
Crate ProCharger Motor
Custom Built Blower Motor.jpg)
New Eliminator SBC Head
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