of this engine. When choosing a piston, the choices can be reduced to a few ... simple steps. Piston to cylinder head compatibility is ... (VR) placement. VR placement on the piston is influenced by two characteristics of ... is commonly known as 60/40 Shift (See diagram at right) in order to allow for larger ... All JE flat top and inverted dome shelf piston designs accommodate 60/40 Shift and ... 10X cylinder heads will require custom pistons. JE domed pistons share the same ... as the flat top and inverted dome pistons. Only the Pro Action/ Pro Topline, ... the GM Fast Burn heads require special pistons in addition to those mentioned above. ... 23 , JE has designed specific shelf parts to suit these applications. Although ... them. These special application shelf pistons will work with nearly any aftermarket ...
-9763 FAX: 714-893-8297 FORD JE shelf Pistons for the 302/351 Small Block Ford ... TFS Twisted Wedge heads require custom pistons unless the JE part is specifically ... application. JE does offer some shelf pistons specifically designed for the Twisted ... These are designated the Twisted Series pistons and are listed along with the standard ... into two categories to determine piston to cylinder head compatibility. First ... 428 SCJ (427 SOHC heads require custom pistons). Second are the later style 429/460 ... and Boss 429 heads all require custom pistons). All JE Big Block Ford shelf pistons ... as explained in the notes and diagrams below. Due to the many different ... 4.270 * 427 SOHC heads require custom pistons #7 #6 #8 #5 Exhaust Intake Exhaust ...