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Manley Rotating Assembly, SBC 355 3.480 STROKE/-4cc FLAT

Your Price: $2,771.42

SKU: 290730RX

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Manley Rotaing Assembly, SBC 355 3.480 STROKE/-4cc FLAT.

  • Lightweight 4340 forged steel crankshaft
  • 4340 Forged steel H-Beam connecting rods with 7/16” ARP 8740 or optional ARP 2000 cap screws*
  • 2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pins
  • Horsepower range is 750 with the ARP 8740 and 1,500 with the optional ARP 2000 cap screws
SKU: 290730RX Categories: ,

GTIN: 00807298115146

Product Market


Piston Volume

-4.00 CC

Product Type

Engine Crankshaft Rotating Assembly

Rod Bolt Material

ARP 2000

Engine Stroke

3.480 IN

Piston Head Type



355 CID

Piston Bore Diameter

4.030 IN

Crankshaft Part Number


Connecting Rod Length

6.000 IN

Piston Part Number


Piston Ring Part Number


Compression Ratio with Head

10.40:1 with 64.00 CC Head, 11.20:1 with 58.00 CC Head, 9.10:1 with 76.00 CC Head

Rod Bearing Type

Extra Clearance

Engine Block

350 Block with 350 Main Journal Diameter

Engine Detail – Web

Small Block

Instructions: Enter a value in the un-shaded boxes below as they pertain to your engine.
Note: For pistons BELOW the block @ TDC – value in box must be a POSITIVE number (.000)
Note: For pistons ABOVE the block @ TDC – value in box must be a NEGATIVE number (-.000)
Note: For a DISH piston – value in box must be a POSITIVE number (0.0)
Note: For a DOME piston – value in box must be a NEGATIVE number (-0.0)
Note: Manipulate the DOME/DISH & PISTON to DECK volumes to get the ratio you want.
Enter the number of cylinders of your engine
Finished bore of your engine
Stroke of your engines crankshaft
Rod Length
Ctr. to Ctr. length of your connecting rods
Gasket Bore
Head Gasket bore diameter
Comp. Gasket
Compressed Head Gasket thickness
Block Deck Height
Center of main bearing bore to top of block
Top Ring Down
Top of 1st ring to top of pistons(FLAT)
Chamber Volume
Cylinder Head chamber volume in CC’s
Dome/Dish Volume
DOME (-) or DISH (+) vol. (theoretical) in CC’s
Piston to Deck
Top of BLOCK to top of piston (FLAT) @ TDC
Click “Calculate” for dimension results.
Total Volume
Cylinder Volume
Total cylinder volume in CC’s =
Clearance Volume
All effective vol. above block deck @ TDC in CC’s =
Gasket Volume
Volume of your head gasket in CC’s =
Top Ring Volume
Total volume above the top ring @ TDC in CC’s =
Deck Volume
Volume of area above the pistons @ TDC in CC’s =
Piston Top Land
Piston top land diameter for volume calculations =
1/2 Stroke
1/2 stroke of your engine’s crankshaft in inches =
Compression Ht.
Ctr. of piston pin to top of piston (FLAT) in inches =
Cubic Inches
Cubic inch displacement of your engine =
For the given dimensions, your compression ratio