CRANKSHAFTS
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 Length
Rod Pin
Rear Main Seal
Target Bobweight Grams
Approx. Weight Lbs.
Part No.
Description
Stroke
Main
Balance
Signature Series, Center Counterweights
LNT60445002
4.500"
6.535" 2.200" 2.750" 2-Piece
Int.
N/A
N/A
Scat 4340 Pro Series 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.
Min. Rod Length
Rod Pin
Rear Main Seal
Target Bobweight Grams
Approx. Weight Lbs.
Part No.
Description
Stroke
Main
Balance
Standard Weight, Early Style Standard Weight, Late Style Standard Weight, Early Style Standard Weight, Early Style
SCA4-454-4000-6135
4.000"
6.135" 2.200" 2.750" 2-Piece
Ext.
2350
70
SCA4-454-4000-6135-L
4.000"
6.135" 2.200" 2.750" 1-Piece
Ext.
2350
70
SCA4-454-4250-6135
4.250"
6.135" 2.200" 2.750" 2-Piece
Ext.
2350
70
SCA4-454-4250-6385
4.250"
6.385" 2.200" 2.750" 2-Piece
Ext.
2350
70
REAR MAIN SEAL ADAPTERS
Chevrolet Big Block 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
CONNECTING RODS
“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 Material Bushed Press Fit 6.135" Rods Eagle SIR 5140 Forged EAGSIR6135B EAGSIR6135P Scat Pro Stock 4340 Forged SCA2-ICR6135 SCA2-ICR6135P Scat Pro Stock Premium 4340 Forged SCA2-ICR6135-7/16 (A) — 6.385" Rods Eagle SIR 5140 Forged EAGSIR6385B — Eagle FSI 4340 Forged EAGFSI6385 (A) — Callies Timken 4330M CALU15110 — Oliver Standard Series 4340 Billet OLVC6385BB8 —
Oliver
197
2021-22 ENGINE BUILDER CATALOG
Made with FlippingBook flipbook maker