http://gallery.barrymorrison.com/albums ... e-1v2a.pdf
http://www.dartshp.com/shpassemblies.html
THERES A PRO RACE VERSION ALSO
http://www.dartheads.com/products/engin ... locks.html
http://www.youtube.com/watch?v=Vt9C6JRr ... re=related
http://www.circletrack.com/enginetech/c ... index.html
keep in mind the LITTLE M BLOCK AS AN OPTION
http://www.dartheads.com/wp-content/upl ... -Block.pdf
http://www.jegs.com/p/Dart/1029740/10002/-1/10719
AT $1456 there not CHEAP but they a certainly a BARGAIN compared to putting $1000 in machine work into a 35 plus year old Chevy block that's no ware near as strong and very likely to be rusted internally and one that might have cracks,
the stock OEM components are rated by chevy, to with stand 350-400hp and 5700rpm-6000rpm,obviously we all no guys that have pushed their components to exceed those limits, but stress is cumulative, and the harder you push or the more frequently you push past those limits the more likely you are to experience component failures
look at the rated hp
http://www.sallee-chevrolet.com/ChevyBareBlockProductionBlockSmallBlockV8s/10105123.html
the DART SHP Chevy Small Blocks are significantly stronger castings in the stressed areas and are rated UP TOO 600hp, the little m blocks are even stronger
http://www.dartheads.com/products/shp-c ... locks.html
http://www.dartheads.com/products/engin ... locks.html
and at $1000 less than their full race block its a deal for a street/strip engine combo
http://www.jegs.com/p/Dart/1064093/10002/-1/10719
whats the difference?
its got a bit less machine work, its not quite as thick and its got less nickle in the casting, and theres less options
"CNC BLOCKS
New Dart Shp Block (pics)
Finally got one of the new SHP block in from Dart, So far I have measured the lifter bores and they measure .8443 no taper, The center main cap came with no washer under the head of the bolt. I disassembled the mains caps cleaned caps and hardware and re lubed the washers and the bolts with CMD-3 and re torqued and the rear main cap was 2.6407 the 3 center caps were 2.641 and front cap is 2.6408 as this will have to be addressed with a line hone.
I noticed the freeze plug holes on the sides of the blocks are beveled and the freeze plug holes in the front and rear and cam plug are not beveled.
It does look like the cam tunnel can be machined for BBC and 50MM cam tunnel with no issues. "
dart posted this info
Dart 31161211 - Dart Special High Performance Blocks Details
Specifications
Material: Superior iron alloy
Bore: 4.125" (unfinished)
Bore/Stroke: 4.165" x 3.750" (max recommended)
Cam Bearing Bore ID: SBC 2.00"
Cam Bearings: Specially-coated & grooved with three oil holes
Cam Bearing OS: +.010", +.020", +.030"
Cam Bearing Press: .002"
Cam Journal OD: Standard SBC 1.869"
Cam Plug: 2-7/64" shallow cup
Cylinder Wall Thickness: .230" minimum @ 4.165" bore
Deck Height: 9.025"
Deck Thickness: .625" minimum
Fuel Pump: Mechanical pump provision
Fuel Pump Pushrod: Standard length
Freeze Plugs: Press-in cup plugs 1-5/8"
Lifter Bores: SBC .8430" to .8440"
Main Bearing Size: 2.450" (350)
Main Bearing Bore: 2.6405 to 2.6415 (350)
Main Caps: Class 35 iron, 4 bolt, center 3
Main Cap Register: Deep stepped register on each side (no need for dowels)
Main Cap Press: .005"
Main Cap Bolts: #1, #5 - 7/16" (2); #2, #3, #4 - 7/16" 3/8" splayed (2)
Oil System: Wet sump, main priority oiling (can use dry sump)
Oil Pump Shaft: 350 main = stock shaft (.481" OD)
Oil Filter: Standard SBC filter (uses 2-bolt filter adapter)
Oil Pan: Standard SBC oil pan
Rear Main Seal: 350 main, standard seal, 2-piece
Serial Number: On main caps and left front
Starter: Standard SBC
Stud Hole/Head: Blind holes
Timing Chain/Gears: Standard SBC components
Timing Cover: Can use stock stamped steel or plastic
Torque: 65 ft/lbs (7/16" bolts), 35 ft/lbs (3/8" bolts)
Weight: 175 lbs
http://www.dartheads.com/products/engin ... ll-blocks/
http://gallery.barrymorrison.com/albums/userpics/10001/SHP_Brochure-1v2a.pdf
http://store.summitracing.com/partdetail.asp?autofilter=1&part=DRT-31161211&N=700+115&autoview=sku
BTW here is a link to my current combo
viewtopic.php?f=69&t=263
http://www.dartshp.com/shpassemblies.html
THERES A PRO RACE VERSION ALSO
http://www.dartheads.com/products/engin ... locks.html
http://www.youtube.com/watch?v=Vt9C6JRr ... re=related
http://www.circletrack.com/enginetech/c ... index.html
keep in mind the LITTLE M BLOCK AS AN OPTION
http://www.dartheads.com/wp-content/upl ... -Block.pdf
http://www.jegs.com/p/Dart/1029740/10002/-1/10719
AT $1456 there not CHEAP but they a certainly a BARGAIN compared to putting $1000 in machine work into a 35 plus year old Chevy block that's no ware near as strong and very likely to be rusted internally and one that might have cracks,
the stock OEM components are rated by chevy, to with stand 350-400hp and 5700rpm-6000rpm,obviously we all no guys that have pushed their components to exceed those limits, but stress is cumulative, and the harder you push or the more frequently you push past those limits the more likely you are to experience component failures
look at the rated hp
http://www.sallee-chevrolet.com/ChevyBareBlockProductionBlockSmallBlockV8s/10105123.html
the DART SHP Chevy Small Blocks are significantly stronger castings in the stressed areas and are rated UP TOO 600hp, the little m blocks are even stronger
http://www.dartheads.com/products/shp-c ... locks.html
http://www.dartheads.com/products/engin ... locks.html
and at $1000 less than their full race block its a deal for a street/strip engine combo
http://www.jegs.com/p/Dart/1064093/10002/-1/10719
whats the difference?
its got a bit less machine work, its not quite as thick and its got less nickle in the casting, and theres less options
"CNC BLOCKS
New Dart Shp Block (pics)
Finally got one of the new SHP block in from Dart, So far I have measured the lifter bores and they measure .8443 no taper, The center main cap came with no washer under the head of the bolt. I disassembled the mains caps cleaned caps and hardware and re lubed the washers and the bolts with CMD-3 and re torqued and the rear main cap was 2.6407 the 3 center caps were 2.641 and front cap is 2.6408 as this will have to be addressed with a line hone.
I noticed the freeze plug holes on the sides of the blocks are beveled and the freeze plug holes in the front and rear and cam plug are not beveled.
It does look like the cam tunnel can be machined for BBC and 50MM cam tunnel with no issues. "
dart posted this info
Dart 31161211 - Dart Special High Performance Blocks Details
Specifications
Material: Superior iron alloy
Bore: 4.125" (unfinished)
Bore/Stroke: 4.165" x 3.750" (max recommended)
Cam Bearing Bore ID: SBC 2.00"
Cam Bearings: Specially-coated & grooved with three oil holes
Cam Bearing OS: +.010", +.020", +.030"
Cam Bearing Press: .002"
Cam Journal OD: Standard SBC 1.869"
Cam Plug: 2-7/64" shallow cup
Cylinder Wall Thickness: .230" minimum @ 4.165" bore
Deck Height: 9.025"
Deck Thickness: .625" minimum
Fuel Pump: Mechanical pump provision
Fuel Pump Pushrod: Standard length
Freeze Plugs: Press-in cup plugs 1-5/8"
Lifter Bores: SBC .8430" to .8440"
Main Bearing Size: 2.450" (350)
Main Bearing Bore: 2.6405 to 2.6415 (350)
Main Caps: Class 35 iron, 4 bolt, center 3
Main Cap Register: Deep stepped register on each side (no need for dowels)
Main Cap Press: .005"
Main Cap Bolts: #1, #5 - 7/16" (2); #2, #3, #4 - 7/16" 3/8" splayed (2)
Oil System: Wet sump, main priority oiling (can use dry sump)
Oil Pump Shaft: 350 main = stock shaft (.481" OD)
Oil Filter: Standard SBC filter (uses 2-bolt filter adapter)
Oil Pan: Standard SBC oil pan
Rear Main Seal: 350 main, standard seal, 2-piece
Serial Number: On main caps and left front
Starter: Standard SBC
Stud Hole/Head: Blind holes
Timing Chain/Gears: Standard SBC components
Timing Cover: Can use stock stamped steel or plastic
Torque: 65 ft/lbs (7/16" bolts), 35 ft/lbs (3/8" bolts)
Weight: 175 lbs
http://www.dartheads.com/products/engin ... ll-blocks/
http://gallery.barrymorrison.com/albums/userpics/10001/SHP_Brochure-1v2a.pdf
http://store.summitracing.com/partdetail.asp?autofilter=1&part=DRT-31161211&N=700+115&autoview=sku
BTW here is a link to my current combo
viewtopic.php?f=69&t=263
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