Page 342 - 2021-22_EngineCatalogAP

CRANKSHAFTS
Forged Steel Crankshafts - Cont.
Scat
Standard features include 4340 forged steel, heat-treated, nitride-hardened, large fillet radii on all journals, lightened holes on rod journals, straight shot & chamfered oil holes, precision ground and micro-polished. Lightweight features are the same as standard, with a reduced rotating weight design and aero-wing counterweights.
Part No. Description
Ford Small Block 289-302-Boss 302
Stroke
3.000" 3.250" 3.400"
Min. Rod Rod Length Pin
5.090" 2.123" 5.400" 2.123" 5.400" 2.123"
Main
2.249" 2.249" 2.249"
Rear Main Seal
1-Pc. 1-Pc. 1-Pc.
Target Balance Bobweight Grams
Ext. 1750 Ext. 1750 Ext. 1750
Approx. Weight Lbs.
48 48 48
SCA4-302-3000-5090-2123 SCA4-302-3000-5090-2123 SCA4-302-3400-5400-2123
Eagle
28-oz. Balance 28-oz. Balance 28-oz. Balance
“ESP” features SAE 4340 steel non-twist forging, multi-stage heat-treated, stress-relieved, .125" radii for use with narrowed bearings, chamfered oil holes, cross-drilled oiling, shot-peened, nitride-hardened, X-rayed, magnafluxed, and sonic tested. 3.00" = 351W mains, 2.750" = 351C mains. Recommended for use up to 1500 HP.
Part No.
Ford Small Block 351W
EAG435235006200 EAG435140006200 EAG435240006200 EAG435141706200 EAG435241706200
K1 Technologies
Description
Standard Weight Standard Weight Standard Weight Standard Weight Standard Weight
Min. Rod Rod
Stroke Length Pin Main
3.500" 6.200" 2.100" 2.750" 4.000" 6.200" 2.100" 3.000" 4.000" 6.200" 2.100" 2.750" 4.170" 6.200" 2.100" 3.000" 4.170" 6.200" 2.100" 2.750"
Rear Target
Main Seal Balance Bobweight Grams
1-Pc. Int. 1900 1-Pc. Int. 1900 1-Pc. Int. 1900 1-Pc. Int. 1900 1-Pc. Int. 1900
Approx. Weight Lbs.
55-60 55-60 55-60 59
58
FORD SMALL BLOCK 221-351W
Features premium 4340 steel, core nitride-hardened, stress-relieved, gun-drilled rod and mains, properly placed counter- weights, large fillet radii for use with narrowed bearings, straight hole rod oiling, magnafluxed, and micro-polished. 3.00" = 351W mains, 2.750" = 351C mains.
Part No. Description
Ford Small Block 351W
K1T011EAD400 Standard Weight
Scat
Stroke
4.000"
Min. Rod Rod Length Pin
6.200" 2.100"
Main
2.750"
Rear Main Seal
1-Pc.
Balance
Int.
Target Bobweight Grams
1850
Approx. Weight Lbs.
61
Pro Series Features: 4340 forged steel, heat-treated, nitride hardened, large fillet radii on all journals, lightened holes rod journals, straight shot & chamfered oil holes, precision ground and micro-polished. 3.00”= 351W mains.
Part No. Description
Ford Small Block 351W
SCA4-351C-3850-6000 28-oz. Balance SCA4-351C-4000-6200 28-oz. Balance or Internal Balance
CONNECTING RODS
Stroke
3.850" 4.000"
Min. Rod Rod Length Pin
6.000" 2.100" 6.200" 2.100"
Main
2.750" 2.750"
Rear Main Seal
1-Pc. 1-Pc.
Balance
Ext. Int./Ext.
Target Bobweight Grams
1850 1850
Approx. Weight Lbs.
58 58
“I” Beam Performance Steel Connecting Rods
Connecting rods are all sold in weight-matched sets of eight with fasteners installed.
Ford Small Block 221-302
5.090" Rods 5.400" Rods
Description
Eagle SIR Scat Pro Stock
Material
5140 4340
5140 Forged E4340 Chrome Moly 4340 Forged 4340 Forged 4340 Forged
Bushed
EAGSIR5090FB SCA2-ICR5090
EAGSIR5400FB B
OLVF5400FDLT8 SCA2-ICR5400-912 C SCA2-ICR5400-927 D SCA2-ICR5400-7/16 A, D
Press Fit
EAGSIR5090FP SCA2-ICR5090P
— — — —
Eagle SIR
Oliver Standard Light Series Scat Pro Stock
Scat Pro Stock
Scat Pro
A Features 7/16" cap screws rather than through-bolts. B Fits Chevy 2.100" crank pin. C for .912" Ford piston pin. D for Chevy .927" piston pin.
340 2021-22 ENGINE BUILDER CATALOG