ProMaxx Performance Products Cylinder Heads Maxx SBC 200 Straight Plug Hand Blended 2.02/1.6/64cc Assembled with .600 Hyd Roller Springs (Pair)
9200HR (Sold in Pairs)
The Maxx 200 is the ultimate “as cast” head available that produces CNC type flow number, flowing over 280cfm. This head has produced over 550 hp on pump gas and mild cam .383.
Maxx SBC 200 Straight Plug Hand Blended 2.02/1.6/64cc Assembled with .600 Hyd Roller Springs (Pair)
Features:
- Ultra-smooth 356-T6 Aluminum Casting
- Competition 5 angle valve job
- Hand Bowl Blending
- Precision designed Runners
- Large Spring pockets
- 200cc intake runner
- Diamond honed guides
- Chamber unshrouded
- Machined and Assembled in the USA
- Available with multiple spring options; Hyd Flat tap, Hyd Roller, Solid and Solid Roller
- Assemblies feature 21-4N Stainless 1 pc Swirl polished back cut valves, studs and guide plates
| Flow Data @ 28″ water | |||||||
| lift | 100 | 200 | 300 | 400 | 500 | 600 | 700 |
| Int | 71 | 146 | 206 | 242 | 265 | 277 | 281 |
| Ext | 54 | 111 | 155 | 179 | 193 | 199 | 201 |
Technical Specification:
Combustion Chamber ……64-72cc
Weight …………………………55.00 lbs.
Intake Runner ……………. 200cc
Exhaust Runner …………..72cc
Intake Valve Size …………2.02”
Exhaust Valve Size …….. 1.60”
Spring Pressure
Hydraulic Flat Tappet .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”
******* other spring options available******
Valve Guide ……………Manganese Bronze
Valve Seal Material … Viton
Retainer Material ……Steel
Valve Job ……………… 5-angle
Head Bolts……………. ARP 134-3601
Valve Spacing ………. OEM
Valve Seats ……………Hardened Steel
Intake Gasket ………. Fel-Pro 1206
Exhaust Gasket ……. Fel-Pro 1404
Head Gasket ……….. Fel-Pro 1004 or 1094
Spark Plug …………. .750” Reach Gasket Seat
Torque specs …….. 80 Ft lbs. 3 increments using 30wt oil