Page 199 - 2021-22_EngineCatalogAP

CHEVROLET BIG BLOCK
Forged Steel Crankshafts - Cont.
Lunati
Signature features: premium 4340 non-twist forged steel, heat-treated, stress-relieved, properly placed profiled counterweights, nitride hard-
ened, lightening holes in throws, gun-drilled mains, .125" radii for use
with narrowed bearings, magnafluxed, precision ground and micro-polished.
Min. Rod Rod Part No. Description Stroke Length Pin
LNT60445002 Signature Series, Center 4.500" 6.535" 2.200" Counterweights
Scat 4340 Pro Series
Main
2.750"
Rear
Main Seal Balance
2-Piece Int.
Rear
Main Seal Balance
2-Piece Ext. 1-Piece Ext. 2-Piece Ext. 2-Piece Ext.
Target Bobweight Grams
N/A
Target Bobweight Grams
2350 2350 2350 2350
Approx. Weight Lbs.
N/A
Approx. Weight Lbs.
70 70 70 70
Standard Weight features 4340 forged steel, heat-treated, nitride-hard- ened, large fillet radii on all journals, lightening holes rod journals, straight shot & chamfered oil holes, precision-ground and micro-pol- ished.
Part No.
SCA4-454-4000-6135 SCA4-454-4000-6135-L SCA4-454-4250-6135 SCA4-454-4250-6385
Description
Standard Weight, Early Style Standard Weight,
Late Style Standard Weight, Early Style Standard Weight, Early Style
Min. Rod Rod
Stroke Length Pin Main
4.000" 6.135" 2.200" 2.750" 4.000" 6.135" 2.200" 2.750" 4.250" 6.135" 2.200" 2.750" 4.250" 6.385" 2.200" 2.750"
Chevrolet Big Block
REAR MAIN SEAL ADAPTERS
Rear Main Seal Adapters
Use an early style, Mark IV crank with two-piece rear main seal in the Mark V and VI blocks with one-piece rear seals. Late-style oil pan must be used.
Part No. Description
EAG500 Rear Main Seal Adapter
“I” Beam Performance Steel Connecting Rods
Connecting rods are all sold in weight-matched sets of eight with fasteners installed.
Chevrolet Big Block 396-454
Description
Eagle SIR
Scat Pro Stock Scat Pro Stock Premium
6.385" Rods
Eagle SIR
Eagle FSI Callies
Oliver Standard Series
Material
5140 Forged 4340 Forged 4340 Forged
5140 Forged
4340 Forged Timken 4330M 4340 Billet
Bushed
EAGSIR6135B SCA2-ICR6135 SCA2-ICR6135-7/16 (A)
EAGSIR6385B EAGFSI6385 (A) CALU15110 OLVC6385BB8
Press Fit
EAGSIR6135P SCA2-ICR6135P —
— — — —
6.135" Rods
CRANKSHAFTS
CONNECTING RODS
2021-22 ENGINE BUILDER CATALOG 197
Oliver