- 185cc intake runners
- 202/1.60 valve size
- Screw in studs
- Large spring pockets
- Multiple intake bolt patterns
- Multiple valve cover patterns
- 906 casting number
- Hardened seats
- Machined and Assembled in USA
- Assemblies include: 21-4 valves 3/8 stud guide plates
Flow Data @ 28″ |
|
|
|
|
|
|
100 |
200 |
300 |
400 |
500 |
600 |
Int |
74 |
140 |
202 |
235 |
241 |
246 |
Ext |
50 |
99 |
145 |
175 |
185 |
190 |
PART # |
BRIEF DESCRIPTION |
PLUG TYPE |
CHAMBER SIZE |
VALVE SIZE |
MAX LIFT |
2150 |
185 Vortec Cast Iron Bare |
|
64 |
2.02/1.6 |
|
2151 |
185 Vortec Cast Iron Assy |
|
64 |
2.02/1.6 |
.575 Hyd Flat Tappet |
2151HR |
185 Vortec Cast Iron Assy Hyd Roller |
|
64 |
2.02/1.6 |
.600 Hyd Roller |
2151SR |
185 Vortec Cast Iron Assy Solid Roller |
|
64 |
2.02/1.6 |
.700 Solid Roller |
2151SRT |
185 Vortec Cast Iron Assy Solid Roller Ti Retainers |
|
64 |
2.02/1.6 |
.700 Solid Roller Ti Retainers |
Combustion Chamber ……64cc
Weight …………………………110 lbs. Assy / 100 lbs. Bare
Intake Runner ……………. 185cc 200cc
Exhaust Runner …………..62cc
Intake Valve Size …………2.02″
Exhaust Valve Size …….. 1.60″
Spring Pressure
Hydraulic Flat Taappet .575″ max lift
Closed………………………..115 lbs. @ 1.800″
Open………………………….310 lbs. @ 1.225″
Hydraulic Roller .600″ max lift
Closed ………………….. 145 lbs. @ 1.800”
Open ……………………. 325 lbs. @ 1.200”
Solid Roller .700″ max lift
Closed…………………..230 lbs. @ 1.900″
Open…………………….600 lbs. @ 1.200″
Valve Guide ……………Cast Iron
Valve Seal Material … Viton
Retainer Material ……Steel
Valve Job ……………… 5-angle
Head Bolts……………. ARP 135-3601
Valve Spacing ………. OEM
Valve Seats ……………Hardened Steel
Intake Gasket ………..Fel-Pro 1255
Exhaust Gasket ……. Fel-Pro 1404
Head Gasket ……….. Fel-Pro 1014, 1044 or equivalent
Spark Plug …………. Tapered Seat Plug-AC Delco R44LTS
Description
The 185 Vortec has taken the Vortec head to the next level. Bigger runner and bigger valves mean more power! Just ask dirt track racer Shawn Guffey, who has won every race and back to back track championships since installing Vortec heads on his A Hobby ride. Head also features dual intake and valve cover bolt patterns.