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Home > Manufacturers > JE Pistons > SBC 400 Standard Flat Top Piston Set
JE Pistons 207512 SBC 400 Standard Flat Top Piston Set 440 CID, 4.185 Bore, 4.000 Stroke, 0.06 Oversize
Item Id:JEP-207512
JE Pistons  207512 SBC 400 Standard Flat Top Piston Set 440 CID, 4.185 Bore, 4.000 Stroke, 0.06 Oversize
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Description
JE Pistons 207512 SBC 400 Standard Flat Top Piston Set 440 CID, 4.185 Bore, 4.000 Stroke, 0.06 Oversize

Rod Length 6.000, Deck Ht. 9.000, Comp. Ht. 1.000, C/R 52cc 13.5, C/R 58cc 12.5, C/R 64 cc 11.0, Dome Volume -5.0, Grams 420, Footnotes B, Recom. Ring Set JEP-J100F8-4185-5,

These classic, race winning JE flat top pistons work with most aftermarket 23º heads. They have extra deep valve pockets and a low-friction skirt design. These pistons are designed to use 1/16, 1/16, 3/16 rings or 1/16, 1/16, 3mm rings, see footnote J.

Includes:
Contact Reduction Grooves
Double Spiro Locks #927-042-CS
Double Pin Oilers

Std Bore: 4.125 Ring package designed for: 1/16, 1/16, 3/16 Rings

A fits 3.480 and 3.500 stroke
B
Oil Rail Support is Included
C
.927 Pin Diameter
D
.912 Pin Diameter
E
.990 wrist pin
F
Indicates 1.040 Pin Diameter
H
Indicates 1.094 Pin Diameter
J
Indicates 3mm Oil Ring
K
.945 Pin Diameter
L
Limited Quantities available
M
Made To Order
P
.975 Pin Diameter
S
Solid dome design
W
428 Crank Shaft
X
angle milled heads

Originally developed in 1955 at 265 cubic inches, the small block Chevy engine has evolved into the most popular engine in history. With literally millions of factory production units in circulation, the performance aftermarket has exploded with countless variations of this engine. When choosing a piston, the choices can be reduced to a few simple steps.

Piston to cylinder head compatibility is determined by two major factors, dome shape/size and valve relief (VR) placement. VR placement on the piston is influenced by two characteristics of the particular cylinder head being used; valve angle and valve spacing. The following paragraph discusses the VR placement characteristics of the most popular small block Chevy cylinder head, the 23º.

Factory GM heads are used to define standard valve spacing and angle (thus 23º) for many small block Chevy’s. Additionally most 23º aftermarket cylinder heads incorporate what is commonly known as "60/40 Shift" (See diagram at right) in order to allow for larger valves. All JE flat top and inverted dome shelf piston designs accommodate "60/40 Shift" and will work with most aftermarket 23º cylinder heads, including those with oversized valves and angle milled surfaces. TFS "Twisted Wedge", AFR227 and Brodix 10X cylinder heads will require custom pistons.

JE domed pistons share the same compatibility as the flat top and inverted dome pistons. Only the Pro Action/ Pro Topline, Brodix 11X, GB2000, GM Vortec and the GM Fast Burn heads require special pistons in addition to those mentioned above. In some cases, as in the Pro Topline Lightning 23º, JE has designed specific shelf parts to suit these applications.

Although the 23º head is by far the most popular, the performance aftermarket industry has developed several variations that employ different valve angles and VR placements. These styles include cylinder heads such as the Brodix –12 15º, 17º/18º... etc. and have specific sections in our catalog dedicated to them. These special application shelf pistons will work with nearly any aftermarket head of the same valve angle style.

REMEMBER, always check piston to cylinder head clearance during assembly as shown in the diagram below. If you have questions regarding the VR placement on your particular cylinder head, JE suggests that you contact the cylinder head manufacturer directly.

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This is a Special Order Item
The Manufacturer Offers Drop Shipments For Special Order Items: Yes
Manufacturer's Drop Ship Fee For Special Order items If Desired: $ 20.00
J.E. typically ships Drop Ship Special Orders in 1-3 days.
Related Items
JE Pistons J100F8-4185-5 Piston Ring Set  4.185" Bore 1/16" x 1/16" x 3/16"
JE Pistons J100F8-4185-5 Piston Ring Set 4.185" Bore 1/16" x 1/16" x 3/16"
Your Price:$161.71
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