In the fall issue of Chevelle by super chevy the is an article on a 408 chevy that is a stock block with a 4" crank by T&L Engines ( tandlengines.com )
They can go up to 414 on a stock 350 type GM block. Heres their spec sheet. Not bad for under 5K
408 Chevy A-2 510 HP 500 Torque - $4784
•
4.00 stroke 4340 forged steel crank
• 4340 6” H-beam rods
• Mahle forged pistons
• Mahle file fit rings
• GM 4 bolt block
• Dura-bond cam bearings
• Block plug kit
• Oil filter adapter
• Hydraulic roller cam
• Roller timing set
• Custom gasket set
• Chrome timing cover
• Professional products balancer
• Balancer bolt
• Melling high volume oil pump
• Melling oil pump drive shaft
• Melling oil pump pickup
• Hydraulic roller lifters
• Dart or RHS aluminum heads
• 7/16 screw in rocker stud
• Comp cam push rod
• Aluminum roller rockers
• Edelbrock RPM Air Gap manifold
• ARP head bolts
• Chrome valve covers
• Chrome oil pan
• Autolite spark plugs
• Oil filter
• 12 pt bolt kit
Labor
• All parts hand cleaned
• Block sonic checked for thickness
• Block pressure tested @40 psi
• Block stroker clearanced
• Block square decked w/BHJ fixturing
• Aligned hone mains
• Bored and honed w/torque plates
• All clearances checked to the nearest .0001”
• Rotating assembly balanced
• Engine blueprinted w/specs sheet on file
• Engine fully assembled and dressed to customer specifications
• Dyno tested
Blessings,
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