Dragon Slayer 255cc X
Here is a link for more information and how to order online
I try to keep these in stock but they are custom heads so from time to time they may be out of stock
These are new cnc Ported Brodix Dragon slayers with my port design in them. They are 40/60 valve spacing head and do require shaft rockers. Here are the specs
2.125Intake valve 5/16 valve stems
REV Custom 1.60 Exhaust valve
50Degree valve job on intake and exhaust
67cc Chambers can be milled to 64cc for no charge
2.81 Min CSA
255cc Intake port volume
Assembled with PAC 1225 springs and titanium retainers Max Lift .780
Flow numbers on Saenz d680 With no exhaust pipe 4.155 bore
Intake Exhaust
.1-70 49
.2-154 108
.3-211 158
.4-265 195
.5-308 222
.6-332 235
.7-341 242
.8-344 247
.9-344 249
1.0-345 251
Flow on Superflow 750 4.155 bore No Exhaust pipe 4.155 bore
Intake Exhaust
.1-72 55
.2-146 114
.3-221 151
.4-273 188
.5-309 213
.6-332 228
.7-347 239
.8-352 246
.9-353 249
1.0-354 253
Flow number may vary by set but you will be given the actual flow sheet from you set of heads.
HEADS DO NOT COME WITH ROCKER STUDS OR GUIDE PLATES
Options:
Ferrea valves add $220
CNC soften chambers add $550
Add Stahl Exhaust pattern add $300
PSI Springs add $150
Hydraulic roller spring set up minus $150