Page 153 - 2021-22_EngineCatalogAP

ENGINE BLOCK SLEEVES
Part No.
Application
Rough Bore
Outside Diameter
Length
Wall Thickness
Flange Thickness
Flange Diameter
Darton Sleeves
DAR300-022
LS7 Single Cylinder Replacement
4.110"
4.310"
5.800"
0.100"
.210"
4.565"
DAR300-023-DF
LS2/LS3/LS7 3.897" Undersized Bore
3.875"
4.325"
5.800"
0.225"
.215"
4.575"
DAR300-023-SF
LS2/LS3/LS7 3.897" Undersized Bore
3.875"
4.325"
5.800"
0.225"
.215"
4.575"
DAR300-024
LS1/LS6 Replacement 3.897" Bore
3.890"
4.180"
5.600"
0.145"
.285"
4.320"
DAR300-027-DF
LS7 Replacement Sleeve Dual Flat
4.110"
4.325"
5.800"
0.108"
.215"
4.575"
DAR300-027-SF
LS7 Replacement Sleeve Single Flat
4.110"
4.325"
5.800"
0.108"
.215"
4.575"
MAIN BEARING CAPS
Billet Speedworks
Billet Main Bearing Caps
Billet main caps offer increased bottom end strength. Many of the billet caps listed are for converting a two-bolt main block to the more durable four-bolt main configuration.
Part No.
Description
Caps
Block
Register
PGESBLS1
Stock Block LS, 4.0L, 5.3L, LS1, LS2, LS6 (5 Cap Set)
Stock
Stock
Stock Step
CRANKSHAFTS
LS-Based Forged Steel Crankshafts
Callies
Compstar LSx features Spec 4340 material, mid-weight design, multi heat-treated, double stress-relieved, nitride-hard- ened, properly placed counterweights profiled for piston clearance, drilled rod journals, precision ground and mirco-pol- ished to 5Ra. Dragonslayer LSx features Spec 4340 material, mid-weight design, multi heat-treated, double stress-relieved, nitride-hardened, properly prepped counterweights, gun-drilled mains, lightened rod journals, dual linear post keyways, pre- cision ground and micro-polished to 5Ra.
Dart
Features 4340 billet steel, 8 counterweights added front, center, and rear, heavy-duty rod cheeks, small hole through the rod pin, dual keyway provision, large radii for narrowed rod bearings, chamfered oil holes, highly polished journals, no Mallory required. 800-900 HP naturally aspirated, and works in power-adder engines. Recommended for use with LS Next/ SHP LS Blocks. Fully polished option special order only.
Part No.
Description
Stroke
Min. Rod Length
Rod Pin
Main
Rear Main Seal
Balance
Target Bobweight Grams
Approx. Wt./Lbs.
CALAPO317-CS24
LS1 Compstar, 24-Tooth Reluctor
4.000"
6.100"
2.100"
2.559"
1-Piece
Int.
1785
55
CALAPO31T-DS
LS1 DragonSlayer, 24-Tooth Reluctor
4.000"
6.100"
2.100"
2.559"
1-Piece
Int.
1785
48
Part No.
Description
Stroke
Min. Rod Length
Rod Pin
Main
Rear Main Seal
Balance
Target Bobweight Grams
Approx. Wt./Lbs.
DRT9-34640006125-8 †
LS1/LS6 Short Snout, 24-Tooth Reluctor
4.000"
6.125"
2.100"
2.559"
1-Piece
Int.
1780
60
† These Dart cranks are precision fitment in Dart LS Next and SHP LS blocks.
2021-22 ENGINE BUILDER CATALOG 151
LS / LT (GEN-5) SERIES