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Custom Coatings

Custom Work

Applying Microlon to Pistons and Rings

TBC/Ceramic Coated top, PC-9 Sides

Checking Pistons

Polished Pistons



DPR Custom Forged Pistons are available for all applications!

The most popular are listed below, almost all others available!!!

Dished       Flat top       Low Compression

DPR Street & Strip - "SS" - Forged Pistons
· 2618-T6 Forged Aluminum
· Lightweight piston designs
· Tight running clearances
· Low drag skirt design
· DPR specific valve relief Design
· Anti detonation grooves
· Gas accumulator channel
· Lightweight wrist pins
· Full floating wrist pins
· Narrow piston rings
· Radiused & Blue Printed Polished Face (An Industry First)
· Coated Face and Skirts available
· Flat Top, Dish and Dome Profiles available
· Fully balanced to within 0.25 grams
· Few Machines Used For Reduced Tolerance Stacking

Suitable for high performance street and all forms of racing!
DPR "SS" Forged Pistons are designed for performance and race applications where a strong, lightweight forged piston is an advantage. Honda/Acura and many other applications, these fully featured pistons are extremely popular for use in street and many racing combinations. Pistons can be polished, Worked for custom valve or skirt clearance, Ceramic coated on top, Low friction coated on the outside of the skirt, and Oil Shed coated inside the skirt.


           

DPR High Rev - "HR" - Forged Pistons

· 2618-T6 Forged Aluminum
· Ultra-light piston designs
· Ultra-light wrist pins
· Full floating wrist pins
· Lateral gas ports (some models)
· .043" top and second rings (some models)
· "Frictionless" skirt designs
· Narrow ring lands
· Anti detonation grooves
· Gas accumulator channel
· Radiused & Blue Printed Polished Face
· Ceramic Coated Face
· "Frictionless" Coated Skirts
· Flat Top, Dish & Dome Profiles
· Fully balanced to within 0.25 grams
· 21mm & 19mm Pin Sizes
· Few Machines Used For Reduced Tolerance Stacking

Specifically designed for racing applications!
DPR "HR" Forged Pistons are specifically designed for racing applications. DPR F-I pistons are a Formula-1 design for modern Import engines. Designed to be the lightest pistons available anywhere. In addition to the ultra-light weight DPR FI forged pistons are designed to radically reduce drag and enhance ring seal to increase power.

CUSTOM PISTON WORK:

________________________________________________________________
- Polish Piston Tops $25 Each
- Modify Piston Tops for 2 Valves $30 Each
                                    4 Valves $35 Each
- Modify Piston Skirts for Clearance $30 Each
- * (TBC) on top and PC-9 Skirt(PM) $45 Each 4/$148
- * (TBC)/Ceramic coat piston Tops Only $35 Each 4/$118
- * Dome(Gold Coat) and Skirt(PC-9) $55 Each 4/$188
- * Microlon Treat Piston,Rod,Pin, and Rings $25 (per piston set) or 4/$90
Visit the "Microlon" page and learn more...

* Go to our "Competition Coatings" page for full list of coatings, and prices.
Visit the "Competition Coatings" page and learn more...

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PISTON RINGS:

TOTAL SEAL - "Gapless" Piston rings
Gapless ® Piston Rings Total Seal's patented Gapless ® Piston rings provide increased performance through unmatched sealing of the cylinder and combustion gasses in the combustion chamber. Increased horsepower and torque along with longer engine life are just a couple of the reasons why Total Seal's Gapless ® Piston rings are the best rings available. Here are many more.

Increased horsepower and torque
Longer engine life
Saves money (fewer teardowns)
Improved consistenny
Cleaner engine oil
Longer ring life
Better Oil control
Less friction
Lower engine oil temperatures
Wider torque curve
More engine vacuum
Increased intake signal




How it Works... As shown in the illustration, compression gas is deflected by the rail into the piston groove and aid in pressure loading the ring throughout the 4 stroke cycle. At the same time the rail also and most importantly closes off the combustion gas leak path created by the ring end gap. This gap is the primary cause of blow-by in a 4 cycle engine. With a conventional type ring as the ring and cylinder wear the ring end gap increases and the blow-by figures increase. The Gapless® ring blow-by figures are not affected by this wear, as the ring end gap increases it is blocked by the rail portion of Total Seals patented interlocking 2 piece design stopping the blow-by at the source. Conventional style rings when newly installed will show leak down figures of 7% or higher these figures can quickly exceed 20% or higher after a surprisingly short period of time. Gapless® rings on the other hand when newly installed typically show leak down figures of 2% and lower and should remain the same throughout the life of the engine.

Custom piston ring sets are available for any application in just about any ring combination & bore size if you don't see what you want listed just give us a call, WE CAN DO IT. Custom Services Custom machine rings, back cut/cut down width/convert to dykes type/regroove pistons/convert your 2nd rings to Gapless/2 stroke ring & piston modifications.

Steel Top rings custom manufactured in house to tight tolerances, this process allows you to pick any bore or ring size you may need. Optional aerospace style face coatings help reduce the cylinder wear commonly seen with other brands of steel rings.

So if your application requires the ultimate in top rings ask about our new T-29™ steel top rings. Most popular sizes now available, custom sizes by request.

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DPR Pistons



Make  
Part#
Model
Type
CH
Bore
Stroke
Rod
CR
Notes
Deck clear
Buick
14477-030
V6
Dish
1.850
3.830
3.400
5.960
`-29.5cc
48 cc head
Make  
Part#
Model
Type
CH
Bore
Stroke
Rod
CR
Notes
Deck clear
Chevy
14462-033
BB
Flat Top
1.270
4.500
4.250
6.385
ft
9.800 deck
0.02
4.750
6.535
10.2
0.02
4.250
6.8
10.2
0.005
14462-063
4.530
14462-093
4.560
14462-133
4.600
14463-033
BB
Flat Top
1.395
4.500
4.000
6.535
ft
9.8 deck
0.02
4.500
6.385
10.2
0.02
4.000
6.8
10.2
0.005
14463-063
4.530
14463-093
4.560
14463-133
4.600
14464-033
BB
Flat Top
1.520
4.500
4.250
6.135
10
9.8 deck
0.02
4.250
6.535
10
0.02
14464-063
4.530
14464-093
4.560
14465-133
4.600
14465-003
BB
Flat Top
1.645
4.470
4.000
6.135
10
9.8
0.02
4.000
6.535
10
14465-033
4.500
14465-063
4.530
14465-093
4.560
14465-133
4.600
14466-033
BB
Low Dome
1.270
4.500
4.250
6.385
10
9.800 deck
0.02
4.750
6.535
10.2
0.02
4.250
6.8
10.2
0.005
14466-063
4.530
14466-093
4.560
14466-133
4.600
14467-033
BB
Low Dome
1.395
4.500
4.000
6.535
10
9.8 deck
0.02
4.500
6.385
10.2
0.02
4.000
6.8
10.2
0.005
14467-063
4.530
14467-093
4.560
14467-133
4.600
14468-033
BB
Low Dome
1.520
4.500
4.250
6.135
10
9.8 deck
0.02
4.250
6.535
10
0.02
14468-063
4.530
14468-093
4.560
14468-133
4.600
14469-003
BB
Low Dome
1.645
4.470
4.000
6.135
10
9.8
0.02
4.000
6.535
10
14469-033
4.500
14469-063
4.530
14469-093
4.560
14469-133
4.600
14495-003
BB
Low Dome
1.645
4.470
4.000
6.135
8.750
9.800
0.020
Make  
Part#
Model
Type
CH
Bore
Stroke
Rod
CR
Notes
Deck clear
Ford
14271-std
FE 428
Dish Top
1.665
4.130
3.980
6.49
`-16.9 dish
14271-030
4.160
14470-030
FE 390
Dish Top
1.665
4.080
3.980
6.49
`-16.9cc
14471-STD
FE 428
Flat Top
1.665
4.130
3.980
6.49
14471-030
4.160
14472-030
FE 390
Flat Top
1.665
4.080
3.980
6.49
14482
Dish
1.171
85mm
`-7.2cc dish
9 to1
14483
Dome
1.171
85mm
3.5 dome
10.5 to 1
Make  
Part#
Model
Type
CH
Bore
Stroke
Rod
CR
Notes
Deck clear
Honda/Acura
14478-std
RSX
Dish
1.181
86mm
3.386
5.472
`-9cc
50.5cc head
14478-1.0
87mm
.025 gasket
.005 deck
14479-std
RSX
Dome Top
1.181
86mm
9cc
50.5cc head
14479-1.0
87mm
.025 gasket
.005 deck
1302-11885-STD
"B" Series
Dish Top
81mm
267 g
face vol -7.7cc
1302-11885-50
81.5mm
267 g
face vol -7.7cc
1302-11875-STD
Flat Top
81mm
272 g
face vol -2.0cc
1302-11875-50
81.5mm
272 g
face vol -2.0cc
1302-11876-STD
Low Dome
81mm
TBA g
face vol 3.5cc
1302-11876-50
81.5mm
TBA g
face vol 3.5 cc
1302-11877-STD
High Dome
81mm
TBA g
face vol 7.1 cc
1302-11877-50
81.5mm
TBA g
face vol 7.1 cc
1302-_____-STD
Low Dome
85 mm
TBA g
face vol 3.5cc
1302-_____-STD
86 mm
TBA g
face vol 3.5 cc
1302-_____-STD
High Dome
85 mm
TBA g
face vol 7.1 cc
1302-_____-STD
86 mm
TBA g
face vol 7.1 cc
1302-_____-STD
"K" Series
Low Dome
87 mm
TBA g
face vol 3.5 cc
1302-_____-STD
88 mm
TBA g
face vol 3.5 cc
1302-_____-STD
High Dome
87 mm
TBA g
face vol 7.1 cc
1302-_____-STD
88 mm
TBA g
face vol 7.1 cc
Make  
Part#
Model
Type
CH
Bore
Stroke
Rod
CR
Notes
Deck clear
Mini Cooper
14ARA-M.50
2004-2008 R52
Flat
85.8 mm
77 mm
10.6:1
n/a
.005 deck
.030" gasket
51cc head
14ARA-1.0
86.000
14ARS-.50
2001-2006 R53
Dish
85.8 mm
77 mm
8.3:1
Turbo
.005 deck
.060" gasket
55cc head
14ARS-1.0
86.000
Mitsubishi
14480-.50
88-92 eclipse
Dish
1.375
85.500
3.465
5.906
.005 deck
.050 gasket
47cc head
14480-1.0
86.000
14481-.50
93-99 eclipse
Dish
1.375
85.500
3.465
5.906
.005 deck
.050 gasket
47cc head
14481-1.0
86.000
Make  
Part#
Model
Type
CH
Bore
Stroke
Rod
CR
Notes
Deck clear
Nissan
14484-.50
VG30DETT 3.0L
Dish
1.255
3.445
3.270
6.071
9.000
`-4.1cc
49.5 cc head
14484-1.0
3.465
.040 gasket
.000 deck
14485-.50
Dome
1.255
3.445
3.270
6.071
10.5
4.8cc
49.5 cc head
14485-1.0
3.465
.040 gasket
.000 deck
14486-.50
Sentra SR20DET
Dish
1.260
3.405
3.386
5.366
9.000
`-12cc
46.5 cc head
14486-1.0
3.425
.036 gasket
.000 deck
14487-.50
Sentra SR20DET
Flat Top
1.260
3.405
3.386
5.366
11.000
0cc flat top
45cc head
14487-1.0
3.425
.036 gasket
.002 deck
14487-.50
For JDM
8.7
0cc flat
60cc head
14487-1.0
Black Top
.036 gasket
.002 deck
Make  
Part#
Model
Type
CH
Bore
Stroke
Rod
CR
Notes
Deck clear
Oldsmobile
14475-030
350
Flat Top
1.625
4.087
3.385
6.000
14476-030
455
Flat Top
1.625
4.155
4.250
6.735
14476-060
4.185
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Make  
Part#
Model
Type
CH
Bore
Stroke
Rod
CR
Notes
Deck clear
Pontiac
14473-030
400
Flat Top
1.708
4.150
3.750
6.630
14474-030
455
Flat Top
1.590
4.181
4.210
6.625
This piston is also a 428 @ .061 over
Make  
Part#
Model
Type
CH
Bore
Stroke
Rod
CR
Notes
Deck clear
Subaru
14491-std
WRX-2.0L
Dish Top
1.287
3.622
2.953
5.135
8.700
`-12.6cc
45cc head
14491-.50
3.642
.032 gasket
.005 deck
14492-std
EJ25D-2.5L 99-up
Dish Top
1.160
3.917
3.110
5.167
8.300
`-23.3cc
51cc head
14492-.50
3.937
.032 gasket
.012 deck
Make
Part#
Model
Type
CH
Bore
Stroke
Rod
CR
Notes
Deck clear
Toyota
14488-.50
3SGTE-2.0L
Dish Top
1.375
3.405
3.386
5.433
9.000
`-4.1cc
53cchead
14488-1.0
3.425
.056 gasket
.004 deck
14489-.50
2JZGTE-3.0L
Dish Top
1.338
3.405
3.386
5.59
8.500
`-14cc
45cc head
.056 gasket
.001 deck
14490-.50
7MGTE-3.0L
Dish Top
1.299
3.287
3.582
5.984
8.400
`-18.5cc
40 cc head
14490-1.0
3.307
.056 gasket
.000 deck
4AGE
14497-1.0
MR2 88-92
Flat Top
1.210
3.228
3.031
4.804
8.600
39CC head
.028 gasket
.005 deck



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