We have had good success with V8 Ford cylinder heads, few examples of our work below.
SBF V2 CHI 190cc:
BBF Edelbrock FE:
We have a good experience of Chevy small block V8 heads through the years.
Below some examples of our work.
SBC Dart Pro1 200cc:
SBC Dart Pro1 Platinum 180cc:
SBC LT1:
SBC World S/R:
SBC World sportsman-2 / Dart-II:
SBC GM Performance Parts:
We have ported mopar cylinder heads for street and drag racing.
Few examples of heads we have ported.
Brodix B1:
- From year 2009 to 2010 Low Heat Racing gained from 8.82s / 244km/h to 8.60s / 253km/h with head porting only and some weight increase because of improved roll cage:
http://www.lowheatracing.fi/historia.html
Edelbrock BBM Victor CNC max wedge:
We have CNC ported Max Wedge version with hand finish.
Runner cross section area and volume will be adjusted per engine size and RPM, so cfm will vary, contact for more details.
Procomp "Victor":
440 Source "Stealth":
LS6 CNC
These NPS-ported LS6 CNC heads have stock 2.00"/1.55" valves with multi angle intake and radius exhaust seats for good flow and performance characteristic.
While these heads accept 2.02"/1.575" valves, stock valves are capable of flowing enough to support close to 600 horse power and are not as picky for cam profiles.
Runners are CNC ported for equal flow between from port to port and to maintain perfect air velocity through runners. Combustion chambers are polished to maintain good pressure recovery and flow dynamics and to keep compression ratio high without making deck surfaces thinner.
Stock Flow Ported Flow
|
cfm@28" h2o |
cfm@28" h2o | Dif. to Stock % | ||||||||||
| Lift " | Intake | Exhaust | E/I % | Theor HP | Lift " | Intake | Exhaust | E/I % | Theor HP | In | Ex | |
| 0.1 | 62.2 | 54.2 | 87.1 | 128 | 0.1 | 64.9 | 53.1 | 81.8 | 133 | 4.3 | -2.0 | |
| 0.2 | 134.4 | 102.6 | 76.3 | 276 | 0.2 | 132.0 | 106.0 | 80.3 | 271 | -1.8 | 3.4 | |
| 0.3 | 191.1 | 131.4 | 68.8 | 393 | 0.3 | 200.3 | 147.6 | 73.7 | 412 | 4.9 | 12.3 | |
| 0.4 | 230.4 | 153.0 | 66.4 | 474 | 0.4 | 252.4 | 178.0 | 70.5 | 519 | 9.6 | 16.3 | |
| 0.5 | 252.4 | 165.1 | 65.4 | 519 | 0.5 | 285.3 | 194.1 | 68.0 | 587 | 13.0 | 17.6 | |
| 0.6 | 247.8 | 173.5 | 70.0 | 510 | 0.6 | 303.1 | 203.0 | 67.0 | 623 | 22.3 | 17.0 | |
| 0.7 | 248.1 | 510 | 0.7 | 296.0 | 208.4 | 70.4 | 609 | 19.3 | ||||
| 0.8 | 301.4 | 211.8 | 70.3 | 620 |
LS1 CNC
These NPS-ported LS1 CNC heads have stock 2.00"/1.55" valves with multi angle intake and radius exhaust seats for good flow and performance characteristic.
These heads accept 2.02"/1.575" valves, but with stock valves are capable of flowing enough to support around 550hp.
Intake ports are CNC ported due excessive port re-shaping. Combustion chambers are polished to maintain good pressure recovery and flow dynamics and to keep compression ratio high without making deck surfaces thinner. Exhaust runners are hand ported.
Stock Flow Ported Flow
| cfm@28" h2o | cfm@28" h2o | Dif. to Stock % | ||||||||||
| Lift " | Intake | Exhaust | E/I % | Theor HP | Lift " | Intake | Exhaust | E/I % | Theor HP | In | Ex | |
| 0.1 | 62.0 | 48.2 | 77.6 | 128 | 0.1 | 65.4 | 53.5 | 81.8 | 134 | 5.3 | 11.1 | |
| 0.2 | 133.1 | 92.8 | 69.7 | 274 | 0.2 | 138.5 | 104.2 | 75.2 | 285 | 4.1 | 12.3 | |
| 0.3 | 189.6 | 131.0 | 69.1 | 390 | 0.3 | 203.7 | 140.6 | 69.0 | 419 | 7.5 | 7.4 | |
| 0.4 | 222.3 | 156.0 | 70.2 | 457 | 0.4 | 244.3 | 174.2 | 71.3 | 502 | 9.9 | 11.7 | |
| 0.5 | 222.5 | 170.7 | 76.7 | 457 | 0.5 | 264.3 | 192.5 | 72.9 | 543 | 18.8 | 12.8 | |
| 0.6 | 230.6 | 181.0 | 78.5 | 474 | 0.6 | 276.8 | 198.5 | 71.7 | 569 | 20.0 | 9.7 | |
| 0.7 | 233.7 | 182.9 | 78.3 | 481 | 0.7 | 286.2 | 202.2 | 70.7 | 588 | 22.4 | 10.5 | |
| 0.8 | 295.0 | 607 |
Measured in our own flow bench.
All flow numbers are measured with 28"H2O pressure differential.
Flow numbers are Inlet flow / Exhaust flow and below Exhaust to Intake flow ratio in percents.
Diesel
| Manufacturer | Model | Inlet / Exhaust valve sizes | 2mm | 4mm | 6mm | 8mm | 10mm | 12mm |
| BMW | M47/57 Diesel | 25.9mm / 25.9mm | 52.2/54.2 104% |
88.3/109.6 124% |
104.2/125.8 121% |
112.5/126 112% |
117.2/126.4 108% |
|
| Dodge | Cummins | 45mm / 42mm | .100" 59.7/49.6 83% |
.200" 102.6/100.6 98% |
.300" 125.2/131.1 105% |
.400" 140.1/142.6 102% |
.500" 144.8/143.7 99% |
.600" 147.1/146.3 96% |
| MB | 200CDI 16v | 30.2mm / 28.5mm | 45.4/55.8 123% |
87.2/101.8 117% |
124.9/133.9 107% |
149.5/154.2 103% |
158.4/161.9 102% |
164.1/168 102% |
| Vito 2.0 TD | 38mm / 35mm | 35.1/37.4 107% |
69.5/72.2 104% |
100.1/98.2 98% |
122.6/119 97% |
141.2/135.4 96% |
151.3/136.2 90% |
|
| Opel | 1.7TD | 36mm / 32mm | 38/32.9 86% |
65.3/60 92% |
91/76.8 85% |
109.1/87.6 80% |
118.7/95.3 80% |
123.7/98.7 80% |
| PSA | 1.9TD XUD9TE | 38.5mm / 33mm | 37.6/25 66% |
78.5/53.2 68% |
107.8/71.8 67% |
121.9/83.2 68% |
122.4/88.1 72% |
125.1/90.8 72.5% |
| HDI 16v | 30mm / 25mm | 62/51.5 83% |
106.8/97.8 91.6% |
123/120.3 97.8% |
129/131.9 102.3% |
133.2/135.3 101.6% |
136.4/136.9 100.4% |
|
| VAG | 1.9 TDI PD | 36mm / 31.4mm | 32.5/34.4 106% |
66.5/60.4 91% |
95.6/92.7 97% |
107.3/108.4 101% |
113/112.1 99% |
116.2/111.8 96% |
| 1.9 TDI VE | 36mm / 31.4mm | 32.6/27.7 84.8% |
70.4/57.3 81.4% |
97/82.9 85.5% |
108.9/98.8 90.7% |
110.5/105 95% |
112.4/104 92.5% |
|
| BKD 16v | 29mm / 25.5mm | 57/58.1 102% |
96.9/88.4 91% |
118/99 83.8% |
116.9/102.8 87.9% |
120.3/105.3 87.6% |
||
| CR 2.0 16v | 28.1mm / 26mm | 47/49.1 104% |
95.6/86.7 91% |
119.5/105.9 89% |
128.9/110.6 86% |
133.1/113.1 85% |
135.7/114.1 84% |
|
| 2.5 TDI VE | 36mm / 31.4mm | 33/31.9 96.5% |
70.2/61.6 88% |
92.2/83.4 91% |
102.2/101.6 99% |
101.2/108.3 107% |
101.4/113.4 112% |
|
| 2.5 TDI PD | 36mm / 31.4mm | 31/30.4 98% |
68/59.5 88% |
96.8/86.6 88.4% |
111.1/101 91% |
120.3/110.8 92% |
||
| Volvo | D5 2.4 1-gen | 28.8mm / 26.2mm | 56.2/61.9 110% |
97.3/100.8 104% |
114.7/108.7 95% |
121.6/110.7 91% |
125.7/111.9 89% |