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14º RHS/PRO ACTION®/ PRO TOPLINE®

Designed specifically for 14º Pro Action/Pro Topline cylinder heads, these pistons are excellent for Sprint Car and Drag Race use. Valve reliefs will accommodate oversized valves and long duration, tight lobe separation cams. Precision CNC machined ring grooves are designed for 1/16, 1/16, 3/16 rings. These pistons utilize dedicated left and right hand forgings.

Includes:
Pin #927-2750-15-51S (130g)
Contact reduction grooves
Double spiro locks (#927-042-CS)

400 PRO ACTION/PRO TOPLINE SERIES
Std Bore: 4.125
Ring package designed for: 1/16, 1/16, 3/16 Rings
 Tech and Installation Tips
 Valve Relief Diagram
Part # Cubic
Inches		 Bore Stroke Rod
Length		 Block
Height		 Compression
Distance
Head Cubic Centimeters
52cc 55cc 60cc
Compression Ratio
Dome
Volume		 Gram
Weight		 Footnote Oversize
194954 406 4.125 3.800 6.000 9.000 1.100 15.3 14.6 13.6 3.0 455 S,B std
194955 407 4.135 3.800 6.000 9.000 1.100 15.3 14.6 13.6 3.0 456 M,S,B 0.010
194956 408 4.145 3.800 6.000 9.000 1.100 15.3 14.6 13.6 3.0 460 S,B 0.020


- Denotes part # has been issued a new part #. A list referencing old part #s to their new counterparts will be available shortly.

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