Page 659 - 2022-23 Auto Performance Drag Racing
P. 659
DRAG RACING
Lightweight “F43” 4340 Forged Steel Crankshafts
Gun-drilled main line holes
and profiled, pendulum-cut
counterweights result in ex-
tremely lightweight (40-42 lbs.) “F43” crankshafts. Durabil- ity is achieved through nitride hardening and straight shot, chamfered oil holes. All small block Chevy crankshafts listed are internally balanced and use two-piece rear main seals.
Part No. Description Stroke Rod Length Rod Journal
* Honda rod journal sizing. † Small journal sizing.
Excalibur 4340 Lightweight Forged Crankshafts
Offered for small block Chevy,
Excalibur lightweight crank-
shafts are manufactured
from 4340 non-twist forgings
which have been precision ground, heat treated, and nitrate- hardened for superior wear resistance.
Series 9000 Cast Pro Comp Crankshafts
Crankshafts for mild street
and drag race engines have
Aero-wing counterweights,
fully chamfered oil holes, .125" fillet radius on all journals, shot-peened surfaces for increased strength, knife-edged counterweights, lightening holes in all rod throws, and a full round rear flange. Also available in lightweight versions.
Part No.
Description
Stroke
Rod Length
Rod Journal
SB Chevy 350
SCA9-350-3480-5700
Pro Comp
3.480"
5.700"
2.100"
SCA9-350-3750-5700
Pro Comp
3.750"
5.700"
2.100"
SCA9-350-3750-5700-L†
Pro Comp
3.750"
5.700"
2.100"
SCA9-350-3750-6000
Pro Comp
3.750"
6.000"
2.100"
SB Chevy 400
SCA9-400-3750-5700
Pro Comp
3.750"
5.700"
2.100"
SCA9-400-3750-6000
Pro Comp
3.750"
6.000"
2.100"
BB Chevy 454
SCA9-454-4250-6135
Pro Comp
4.250"
6.135"
2.200"
SCA9-454-4250-6385
Pro Comp
4.250"
6.385"
2.200"
SB Chrysler 340-360
SCA9-340-4000-6123
Pro Comp 340
4.000"
6.123"
2.125"
SCA9-360-4000-6123
Pro Comp 360
4.000"
6.123"
2.125"
SB Ford 302
SCA9-302-3250-5400-2123*
Pro Comp
3.250"
5.400"
2.123"
SCA9-302-3400-5400-2123*
Pro Comp
3.400"
5.400"
2.123"
SB Ford 351W
SCA9-351-385-5955-2311W
Pro Comp
3.850"
5.955"
2.311"
SCA9-351-400-6000-2100W*
Pro Comp
4.000"
6.000"
2.100"
BB Ford 428 “FE”
SCA9-428-3980-6490-2438
Pro Comp
3.980"
6.490"
2.438"
SCA9-FE-4250-6700-2200
Pro Comp
4.250"
6.700"
2.200"
BB Ford 429-460
SCA9-460-4150-6700-2200
Pro Comp
4.150"
6.700"
2.200"
SCA9-460-4300-6700-2200
Pro Comp
4.300"
6.700"
2.200"
SCA9-460-4500-6700-2200
Pro Comp
4.500"
6.700"
2.200"
SB Chevy 350
SCA4-350-3480-5700-18LW*
Lightweight F43
3.480"
5.700"
1.888"
SCA4-350-3480-5700-20LW†
Lightweight F43
3.480"
5.700"
2.000"
SCA4-350-3480-5700-21LW
Lightweight F43
3.480"
5.700"
2.100"
SCA4-350-3500-5700-18LW*
Lightweight F43
3.500"
5.700"
1.888"
SCA4-350-3500-5700-21LW
Lightweight F43
3.500"
5.700"
2.100"
SCA4-350-4000-6000-21LW
Lightweight F43
4.000"
6.000"
2.100"
SB Chevy 400
SCA4-400-4000-6000-21LW
Lightweight F43
4.000"
6.000"
2.100"
Part No.
Description
Stroke
Rod Length
Rod Journal
Weight
SCA7-350-3480-5700
SB Chevy, Internal Balance, 1-Piece Rear Seal
3.480"
5.700"
2.100"
48 lbs.
SCA7-350-3750-5700
SB Chevy, External Balance, 2-Piece Rear Seal
3.750"
5.700"
2.100"
48 lbs.
SCA7-350-3750-6000
SB Chevy, Internal Balance, 1-Piece Rear Seal
3.750"
6.000"
2.100"
48 lbs.
SCA7-350-3875-6000
SB Chevy, Internal Balance, 1-Piece Rear Seal
3.875"
6.000"
2.100"
48 lbs.
SCA7-350-4000-6000
SB Chevy, Internal Balance, 2-Piece Rear Seal
4.000"
6.000"
2.100"
48 lbs.
SCA7-400-4000-6000
SB Chevy, Internal Balance, 1-Piece Rear Seal
4.000"
6.000"
2.100"
48 lbs.
Replacement Connecting Rod Bolts
Scat offers ARP 8740 (200,000 PSI) or ARP 2000 (220,000 PSI) rod bolts for replacement
† 1-Piece rear main seal. * Use 28-oz. balancer.
SFI-Approved Flexplates
Extra-thick flexplates have double-welded ring gears for added strength and are gold anodized for corrosion resistance. Flexplates meet SFI 29.1 specifications and include the proper SFI sticker for NHRA/IHRA tech inspection.
purposes. Sold each.
Part No.
Wrist Pin Bushings Part No.
Description
Size
SCA4AJ1.601-1SLU
ARP 8740 Rod Bolt
3/8” x 1.600”
SCA4AJ1.601-2SLU
ARP 2000 Rod Bolt
3/8” x 1.600”
SCA4AP1.400-1LU
ARP 8740 Rod Bolt
7/16" x 1.400"
SCA4AP1.450-2LU
ARP 2000 Rod Bolt
7/16" x 1.450"
SCA4AP1.602-2LU
ARP 2000 Rod Bolt
7/16" x 1.600"
SCA4AP1.400-1LU
SCAB912
SCAS3750
Part No.
Description
Balance
Tooth
Notes
SCAFP-305-SFI
SB Chevy
Internal
153
—
SCAFP-350-SFI
SB Chevy
Internal
168
—
SCAFP-350L-153-SFI
SB Chevy
External
153
1-Pc. Rear Seal
SCAFP-350L-SFI
SB Chevy
External
168
1-Pc. Rear Seal
SCAFP-400-SFI
SB Chevy
External
168
—
SCAFP-454-SFI
BB Chevy
External
168
—
SCAFP-454L-SFI
BB Chevy
External
168
1-Pc. Rear Seal
SCAFP-302-157-SFI
SB Ford
External (28.2 oz.)
157
10.5" Bolt Circle
SCAFP-302E-SFI
SB Ford
External (28.2 oz.)
164
11.5" Bolt Circle
SCAFP-302L-SFI
SB Ford
External (50.5 oz.)
164
11.5" Bolt Circle
SCAFP-302N-SFI
SB Ford
Internal
164
11.5" Bolt Circle
SCAFP-460-SFI
BB Ford 429-460
External
164
—
SCAFP-460A-SFI
BB Ford 429-460
Internal
164
—
SCAFP-455-SFI
Pontiac
External
166
—
Description
SCAB912
Ford, .912” Dia.
SCAB927
SB Chevy/SB Ford, .927” Dia.
SCAB984
SB Chrysler, .984” Dia.
SCAB990
BB Chevy, .990” Dia.
Rod Cap Alignment Sleeves Part No. Description
SCAS3750
3/8”, “I” Beam Rods
SCAS4375
7/16”, “H” and “I” Beam Rods
657
2022-23