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Instruction Sheets for Part Number HPE-SP61
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Technical Articles for Part Number HPE-SP61
ATK High Performance Chrysler 408 A Stroker Short Blocks
Crate Engine, Chrysler 408 A Stroker, Short Block, Internal Balance, Mopar, Magnum, Each
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Estimated Ship Date from Texas: Monday 10/19/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SP61
Part Type:
Product Line:
Summit Racing Part Number:
HPE-SP61
UPC:
653517147661
Crate Engine Family:
Mopar Small Block Magnum
Actual Engine Displacement:
6.7L/408
Rear Main Seal Style:
2-piece
Crankshaft Material:
Nodular iron
Piston Material:
Hypereutectic aluminum
Short Block Piston Style:
Dish
Connecting Rod Beam Style:
I-beam
Engine Block Material:
Cast iron
Main Journal Type:
Mopar LA Large
Deck Height (in.):
9.600 in.
Engine Balance:
Internal
Oil Pan Included:
No
Timing Cover Included:
No
Harmonic Balancer Included:
No
Flexplate Included:
No
Flywheel Included:
No
Assembled:
Yes
Remanufactured:
Yes
Quantity:
Sold individually.
ATK High Performance Chrysler 408 A Stroker Short Blocks
Start your build with a rock-solid bottom-end with these ATK High Performance Chrysler 408 A Stroker short blocks. These short blocks are built using high-quality components that are all hand-fit and balanced to create a reliable bottom-end that's ready to get your musclecar or truck moving. Just top the engine off with your own parts to build a custom engine that is designed to meet your goals.
These ATK High Performance Chrysler 408 A Stroker short blocks include the following:
* Handpicked and seasoned OE Magnum 1993-2001 blocks
* Aligned and hone main bores
* Nodular iron internally balanced crankshaft
* 4.00 in. stroke
* 4340 forged I beam connecting rods with ARP 8740 bolts
* Hypereutectic pistons with 23.5cc dish
* Plasma-moly rings
* Approximate Compression Ratios: 62cc = 9.7:1 / 68cc = 9.2:1 / 72cc = 8.9:1
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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