Page 4 - 2018 Racecar Engineering Engine Parts and Accessories Catalog

ENGINE BLOCKS

Chevrolet Small Block
Iron Small Blocks
Built to GM quality specifications and available with 2-piece rear main seals, blocks are
available for 350 or 400 style engines.
Part No. Description Bore Deck Ht. Main Cap Main Bore
Iron Engine Blocks
GMP10066034 Iron Block 4.000" 9.025" 4-Bolt Grey Iron 350
GMP10105123 Iron Block W 1-Piece Rear Main 4.000" 9.025" 4-Bolt Grey Iron 350
GMP12480047 Iron Bowtie Block 3.980" 9.025" 4-Bolt Nodular 350 GMP10066034
GMP12480157 Iron Bowtie Block 4.117" 9.025" 4-Bolt Nodular 350
Chevrolet LS Series Block
LS Next Cast Iron or Aluminum Engine Blocks
Fully redesigned blocks combine the benefits of improved lubrication, increased durability
and added versatility. Offered in aluminum or cast iron, blocks use conventional, 4-bolt
main caps and oil pans, while eliminating the problems associated with the separated
crankcase bays. Redesign provides significantly stronger main webs, while allowing the
cylinder barrels to be extended .375" into the crankcase for added piston support. Blocks
are fully compatible with all stock and aftermarket LS components, and the stock oil pan
may be used with Moroso oil pan spacers.
Part No. Description Bore Deck Ht. Main Cap Cam Journal
DRT31837111 Iron Block With Billet Main Caps 4.000" 9.240" 4 Bolt 55mm
DRT31837211 Iron Block With Billet Main Caps 4.125" 9.240" 4 Bolt 55mm
DRT31937111 Alum. Block With Billet Main Caps 4.000" 9.240" 4 Bolt 55mm
DRT31937112* Alum. Block With Billet Main Caps 4.000" 9.240" 4 Bolt 55mm
DRT31937211 Alum. Block With Billet Main Caps 4.125" 9.240" 4 Bolt 55mm
DRT31937212* Alum. Block With Billet Main Caps 4.125" 9.240" 4 Bolt 55mm
*With .391" raised camshaft location

Dart SHP LS Next Cast Iron Blocks
Same Dart design as the LS Next Iron & Aluminum Blocks. The SHP design retains the OE style factory Block Skirt. Uses
OE oil pans as well as front and rear covers.
Part No. Description Bore Deck Ht Main Caps
DRT31867111 SHP LS Next Iron Block 4.000" 9.240" 4-Bolt
DRT31867211 SHP LS Next Iron Block 4.125" 9.240" 4-Bolt

LS Series Aluminum and Iron Small Blocks
LS Series blocks successfully merge pushrod technology with modern LS family of cylinder
heads. LS aluminum blocks are beefy enough for 550 horsepower and the LSX cast iron
block is strengthened in every way possible and can handle over 1500 horsepower.
Part No. Description Bore Deck Ht Main Caps
Aluminum Engine Blocks
GMP19213580 LS7 Alum. Block 4.125" 9.240" 6 Bolt
GMP12623967 LS3/LS92 Alum. Block 4.065" 9.240" 6 Bolt
Iron Engine Block
GMP19260093 LSX Iron Block 3.880" 9.260" 6 Bolt GMP19213580
GMP19260095 LSX Iron Block 4.065" 9.240" 6 Bolt
GMP19260099 LSX Iron Block 4.185" 9.240" 6 Bolt
GMP19260100 LSX Iron Block 3.880" 9.720" 6 Bolt

LS Race Block
The LS Race Block adds the benefits of an extra thick .750" deck surface, raised cam
center line and priority main bearing oiling. Cylinder walls are siamese cast with press-
in, cast iron liners. Patented, Clean Cast Technology provides a superior finish.
Part No. Description Bore Deck Ht. Main Cap Cam Journal
RHS54903U* LS Aluminum Race Block 4.120" 9.250" 6 Bolt 60mm
*With .388" raised camshaft location

2018 ENGINE BUILDER CATALOG 3