355 Chevy Crate Engine (Dressed Longblock)
355 Chevy Crate Engine (Dressed Longblock)
• Dressed Longblock
• 355-375 HP
• 375-380 Torque
• Dart SHP Performance Aluminum Heads
• 355-375 HP
• 375-380 Torque
• Dart SHP Performance Aluminum Heads
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Quick Overview:
This 355 Chevy crate engine is ideal for serious street performance. Our basic 355 Chevrolet performance crate engines boast an honest 355+ horsepower and 375+ torque and run on premium pump gas. This engine will give you the reliability you want for your street cruiser while still having the power you need.
Note: Headers are highly recommended for this application. If you are using stock exhaust manifolds please notify us with your order to ensure proper fitment.
Note: Headers are highly recommended for this application. If you are using stock exhaust manifolds please notify us with your order to ensure proper fitment.
Details
This engine is supplied with a 4 bolt main block.
The Dressed Chevy Longblock build comes with timing cover, oil pan, harmonic balancer and polished Tri Star valve covers installed. This build allows you to use your own intake, carburetor and distributor.
This part number is recommended for street use and runs on premium pump gas with a compression ratio of approximately 9.5:1.
Tri Star Performance lets you customize your Chevy longblock engine build to what you really want. Start by telling us what block to use. Next, look through the variety of options offered for each high performance crate engine. Add what you want to make it your own, even add your own customized text to the valve covers!
The Dressed Chevy Longblock build comes with timing cover, oil pan, harmonic balancer and polished Tri Star valve covers installed. This build allows you to use your own intake, carburetor and distributor.
This part number is recommended for street use and runs on premium pump gas with a compression ratio of approximately 9.5:1.
Tri Star Performance lets you customize your Chevy longblock engine build to what you really want. Start by telling us what block to use. Next, look through the variety of options offered for each high performance crate engine. Add what you want to make it your own, even add your own customized text to the valve covers!
Specs
Part Number
355GMLB
Block
Your choice of a new GM 4 bolt main block or seasoned remanufactured block. Selecting new block option does not change crankshaft or connecting rods.
Stress relieved 4 bolt main block is completely CNC machined in our state of the art CNC machining center. The block is fully align honed and torque plate honed, then assembled with brass frost plugs and pressure tested.
Stress relieved 4 bolt main block is completely CNC machined in our state of the art CNC machining center. The block is fully align honed and torque plate honed, then assembled with brass frost plugs and pressure tested.
Short Block Features
• Tri Star HP Seasoned cast crankshaft
• Tri Star HP Seasoned connecting rods with ARP rod bolts
• Hypereutectic pistons
• Moly rings
• Clevite main and rod bearings
• True roller double roller timing set
• Melling high volume oil pump
• Hydraulic roller camshaft
• Externally Balanced (1 pc. rear main seal option)
• Tri Star HP Seasoned connecting rods with ARP rod bolts
• Hypereutectic pistons
• Moly rings
• Clevite main and rod bearings
• True roller double roller timing set
• Melling high volume oil pump
• Hydraulic roller camshaft
• Externally Balanced (1 pc. rear main seal option)
Camshaft Advertised Duration
272° Intake | 278° Exhaust
Camshaft Duration @ .050"
219° Intake | 225° Exhaust
Camshaft Lift
.525 Intake | .525 Exhaust
Heads
Dart™ SHP Cylinder head castings
Specs
►180cc Intake Runner
►64cc combustion chamber volume
►Straight spark plugs
►2.02 stainless intake valves
►1.60 stainless exhaust valves
►HP valve springs
►HP rocker arms
►Hardened pushrods
Features
►Premium alloy:
•A356-T6 aluminum alloy
►Hardened exhaust seats are compatible with unleaded gasoline
►Multi-angle intake seats and radiused exhaust seats dramatically increase air/fuel flow
►Cast, machined and assembled in the USA
Specs
►180cc Intake Runner
►64cc combustion chamber volume
►Straight spark plugs
►2.02 stainless intake valves
►1.60 stainless exhaust valves
►HP valve springs
►HP rocker arms
►Hardened pushrods
Features
►Premium alloy:
•A356-T6 aluminum alloy
►Hardened exhaust seats are compatible with unleaded gasoline
►Multi-angle intake seats and radiused exhaust seats dramatically increase air/fuel flow
►Cast, machined and assembled in the USA
Additional Parts Included
• Tri Star polished aluminum valve covers
• Chrome timing cover
• New stamped steel oil pan w/ 1pc. pan gasket
• HD Harmonic balancer
• Chrome timing cover
• New stamped steel oil pan w/ 1pc. pan gasket
• HD Harmonic balancer
Horsepower
355-390
Torque
375-395
Warranty
2 year nationwide warranty
Click here for warranty overview
Click here for warranty overview
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PROPOSITION 65 WARNING:
Crude oil, gasoline, diesel fuel and other petroleum products can expose you to chemicals including toluene and benzene, which are known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.p65warnings.ca.gov.
For more information go to www.p65warnings.ca.gov.
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