now after reading thru the article in the may 2009 issue my first impression was they could have done better, but lets look at the build as its very useful as a reference.
the point of the article is that DART has several complete short block assemblies available, for those of us that want to avoid assembling our own.
http://www.dartheads.com/products/short ... rt-blocks/
http://www.dartheads.com/products/shp-s ... locks.html
http://www.dartheads.com/ftp/Online%20P ... 0Sheet.htm
thier selected combo
shp short block (part # 31264344--$3100)
cast crank
4340 forged rods
hypereutectic pistons
TOP END KIT (PART # 01111112--$1600)
180cc port cast iron heads
64cc chambers dual plane intake arp bolts
comp cams 12-246-3 cam $210
3100 ting set $50
ultra goal roller rockers-$295
7.8" pushrods $111
MILODON 30901 oil pan $208
18316 pick up.-- $57
18750 oil pump ...$41
32102 windage tray--$53
81150 main cap studs $53
MISC
holley 770 carb--$400
MSD distrib--#85561--$340
TCI damper #872002 $86
felpro pan gasket #1818 $16
http://www.dartheads.com/products/shp-s ... ml?video=1
the results were a combo with
415 peak hp at 5500rpm
and 430ft lbs of peak tq at 4200rpm
thats about 1.1 hp per cubic inch and its representative of what most comon engine build combos actually produce
yes I know we all have come to expect nothing less than 450 hp from a decent small block combo in a magazine dyno test, but in the real world
1.1-1.25 hp per cubic inch in flywheel numbers is realistic in a street drivable combo
where could they improve the combo?
well the first glaring difference in parts selection ID make would be the 180cc heads and the 230 durration cam, both could be increased to allow the 372 sbc to breath better
an ERSON solid lifter cam, like a E116420 254°/254° .562"/.562" 108° rather than a flat tappet hydralic
better heads
BRODIX 200cc IK heads and a HOLLEY INTAKE http://store.summitracing.com/partdetai ... toview=sku
would have been my selected components
(PROVIDED it was matched to a reasonable manual trans and 3.73-4.11 rear gear in a car weight of under 3500lbs and a low restriction exhaust and headers was used, those changes would easily boost the peak hp numbers up over into the 450hp plus range
BTW THEY ARE ALSO AVAILIABLE IN SOME BIG BLOCK CONFIGS[/color]
http://www.dartheads.com/products/shp-b ... locks.html
the point of the article is that DART has several complete short block assemblies available, for those of us that want to avoid assembling our own.
http://www.dartheads.com/products/short ... rt-blocks/
http://www.dartheads.com/products/shp-s ... locks.html
http://www.dartheads.com/ftp/Online%20P ... 0Sheet.htm
thier selected combo
shp short block (part # 31264344--$3100)
cast crank
4340 forged rods
hypereutectic pistons
TOP END KIT (PART # 01111112--$1600)
180cc port cast iron heads
64cc chambers dual plane intake arp bolts
comp cams 12-246-3 cam $210
3100 ting set $50
ultra goal roller rockers-$295
7.8" pushrods $111
MILODON 30901 oil pan $208
18316 pick up.-- $57
18750 oil pump ...$41
32102 windage tray--$53
81150 main cap studs $53
MISC
holley 770 carb--$400
MSD distrib--#85561--$340
TCI damper #872002 $86
felpro pan gasket #1818 $16
http://www.dartheads.com/products/shp-s ... ml?video=1
the results were a combo with
415 peak hp at 5500rpm
and 430ft lbs of peak tq at 4200rpm
thats about 1.1 hp per cubic inch and its representative of what most comon engine build combos actually produce
yes I know we all have come to expect nothing less than 450 hp from a decent small block combo in a magazine dyno test, but in the real world
1.1-1.25 hp per cubic inch in flywheel numbers is realistic in a street drivable combo
where could they improve the combo?
well the first glaring difference in parts selection ID make would be the 180cc heads and the 230 durration cam, both could be increased to allow the 372 sbc to breath better
an ERSON solid lifter cam, like a E116420 254°/254° .562"/.562" 108° rather than a flat tappet hydralic
better heads
BRODIX 200cc IK heads and a HOLLEY INTAKE http://store.summitracing.com/partdetai ... toview=sku
would have been my selected components
(PROVIDED it was matched to a reasonable manual trans and 3.73-4.11 rear gear in a car weight of under 3500lbs and a low restriction exhaust and headers was used, those changes would easily boost the peak hp numbers up over into the 450hp plus range
BTW THEY ARE ALSO AVAILIABLE IN SOME BIG BLOCK CONFIGS[/color]
http://www.dartheads.com/products/shp-b ... locks.html
