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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)
14º 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 # CID Bore Stroke Rod
Lgth.
Block
Ht.
Comp.
Ht.
Head Cubic Centimeters
52cc 55cc 60cc
Compression Ratio
Dome
Vol.
Gram
Wt.
Footnote Oversize Recom.
Ring Set
194954 406 4.125 3.800 6.000 9.000 1.100 15.3 14.6 13.6 3.0 455 S,B, L 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 J10008-4135-5
194956 408 4.145 3.800 6.000 9.000 1.100 15.3 14.6 13.6 3.0 460 S,B, L 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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