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390/428 "FE" FLAT TOP

For the first time ever, our race-proven SRP design is available for the Big Block Ford "FE" series. Available for both stock stroke and stroker applications. Bore sizes for the 428 block are set at .025" over to allow the use of popular file-fit rings. These pistons offer thick .250" top ring lands for use with limited nitrous or boost while still offering substantial weight savings. Wrist pin diameter is .975" for part numbers designed for 6.490" OEM rods and .990" for part numbers designed for aftermarket 6.700" rods (see footnotes).

Includes: Pin#: 975-2750-16-51S (Footnote P) or 990-2750-15-51S (Footnote E)
Double Spiro Locks (#990-042-CS)
390/428 FE FLAT TOP SERIES
Std Bore: 4.050 (390), 4.130 (428)
Ring package designed for: 1/16, 1/16, 3/16 Rings
Part # CID Bore Stroke Rod
Lgth.
Block
Ht.
Comp.
Ht.
Head Cubic Centimeters
68cc 72cc 76cc
Compression Ratio
Dome
Vol.
Gram
Wt.
Footnote Oversize Recom.
Ring Set
261500 450 4.155 4.150 6.700 10.150 1.375 12.2 11.7 11.2 -5cc 492 E,L 0.025 S100S8-4155-5
261496 416 4.080 3.980 6.490 10.150 1.670 11.4 10.9 10.5 -5cc 534 P 0.030 J100F8-4080-5
261499 432 4.155 3.980 6.490 10.150 1.670 11.7 11.2 10.8 -5cc 544 P 0.025 S100S8-4155-5

- 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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