Dart engineered the Big M
to be the strongest, most
reliable, and easiest to
build big block on the
market.
The Dart Big M2
is designed from the ground
up as a true racing engine
block which can be used with
standard off the shelf big
block components. The
Big M2 is cast from premium
high strength Iron and beefed
up in all the critical areas.
A competition oiling system
ensures adequate lubrication
to the main bearings at high
RPM.
- Standard
9.800”, 10.200”
and 10.400″ deck
heights
- Standard
4.250”, 4.500”,
4.560”, or 4.600”
bore sizes with siamesed
extra thick cylinder walls to
resist cracking and improve
ring seal (minimum
.300” thick with
4.625” bore)
-
Available in .400”
raised cam
- Uses
+.300” tall GEN VI
style lifters. Modifi cation
for MRK IV style available
- 4-bolt main bearing
caps in steel or ductile iron
have splayed outer bolts for
extra strength
- Lifter
valleyhead stud bosses help
prevent blown head gaskets
- Easy to install AN
fitting oil gallery plugs