Butler Performance Custom Short Block, 400 Block, 471-478 cu. in. 4.350" Stroke (Assembled)

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SKU: BP-SB-400-4350

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(866)762-7527

Availability: Contact us for lead time

Description

434-494 CI short block
Complete Internally Balanced longrod rotating assembly &
high-performance prepped block

4.350" stroke forged crank (4-Bolt Billet Mains Caps recommended for 4.5" stroke)
Internally Balanced
Choose Flat Top, Dish, or Dome Pistons- Add head casting or head cc info at checkout and we will confirm compression ratio
H-Beam Rods
File fit rings
Performance Rod bearings
Performance Main bearings
Includes Viton Rear Main Seal
400 Performance Prepped Block

Included reusable engine cradle

Images for display purposes only and could show optional parts. Contact us for a custom quote for your application and specifications

400 Block		Head cc w/-8cc Flat top
Stroke	Bore	72cc	87cc	96cc
3.750"	4.155"	10.38	9.02	8.38
	4.181"	10.48	9.11	8.46
4.000"	4.155"	11	9.55	8.87
	4.181"	11.12	9.65	8.96
4.210"	4.155"	11.53	10	9.28
	4.181"	11.65	10.1	9.38
4.250"	4.155"	11.63	10.09	9.36
	4.181"	11.75	10.19	9.46
4.500"	4.155"	12.25	10.62	9.85
	4.181"	12.38	10.73	9.96
Click here to use our compression calculator to calculate compression with thicker head gaskets, decked block, or other variables.

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