3.08in² MIN
42cc chamber
1.500 x 2.280 opening
3.12in² AVG CSA
6.155 port length
2.180-2.220 valve
1.580-1.600 exhaust
50º seats
4.155 fixture
​.200 150/94
 .300 227/135
  .400 294/195
  .500 349/224
  .600 386/247
 .700 403/261
 .800 410/274
 .900 414/281
  1.00 418/287

Pro-Filer 13º casting. CNC program designed in house. Brodix HV1300 or HV1301 fit perfectly. Edelbrock needs a spacer. SRH has spacers in stock.  Many option available! N2O chambers, 55º seats, valve sizing, call for more info!!

• 950+ hp in NA bracket trim!!!​
• 730+ hp in Pump Gas trim!!!
• ​1030+ hp from 433 w/single carb!!!  Built by Dyno-Tune Engineering

• SRH spacer plates to fit the SRH v3.25PF/13º are available! Made from aluminum plate. $185
  
• Plates are also available with smaller opening that will need to be matched to your port opening.  Made for aluminum plate. $185

ProFiler v3.25PF/ 13º BARE $CALL
Fully CNC'd, Valve Job, Decked, Guides Sized. 

ProFiler v3.25PK/13º Package $8200
Fully CNC'd, Manley Titanium Valves, PAC 1356 Springs. Manley Titanium Retainers, Manley Bead Locks, Manley locators, viton seals, bagged and ready for install.

UPGRADES: Prices ADDED to Package

• Beryllium copper seats $500 
• Add $275 for chamber softening
• Hand Finished $500
• Spacer plates $185
• Jesel KPS-432195 Rocker Kit $2150
• ​ADD $350 for ball adjusters
• ARP 234-4337 stud kit
• Edelbrock 2856 tall deck valley tray