Rod Length 6.800, Deck Ht. 10.300, Comp. Ht. 1.350, C/R 52cc 13.4, C/R 58cc -5.0, C/R 64 cc -, Dome Volume , Grams 577, Footnotes E,L, Recom. Ring Set JEP-J10008-4440-5,

These pistons are compatible with OEM and aftermarket standard valve location heads, they will accommodate oversized valves and long duration, wide lobe separation cams. Precision CNC machined ring grooves accept 1/16, 1/16, 3/16 rings and compression height is figured for 10.300 block height. Note: SVO A, C, E and BOSS aluminum heads require custom pistons.

Includes:
Note E: Pin #990-2930-18-51S (174g) and double spiro locks (#990-042-CS)
Note F: Pin #1040-2930-18-51S (180g) and double spiro locks (#031-042-CS)

Ring package designed for: 1/16, 1/16, 3/16 Rings

JE shelf Pistons for the 302/351 Small Block Ford engines are designed to suit most Ford Factory as well as aftermarket cylinder heads with a few notable exceptions. All Ford Cleveland style "canted valve" heads, Brodix models BF200 and BF300, Chapman SC1 and all TFS "Twisted Wedge" heads require custom pistons unless the JE part is specifically noted to suit that application. JE does offer some shelf pistons specifically designed for the Twisted Wedge style heads. These are designated the "Twisted Series" pistons and are listed along with the standard models where they are available.

Big Block Ford engines are separated into two categories to determine piston to cylinder head compatibility. First are the early FE styles that include the 390, 406 HP, 410 Mercury, 427 and 428 Standard, 428CJ and the 428 SCJ (427 SOHC heads require custom pistons). Second are the later style 429/460 heads (SVO A, C, E, 460SCJ and Boss 429 heads all require custom pistons). All JE Big Block Ford shelf pistons are designed to work with most other factory and aftermarket heads.