MODQUAD BIG BORE DOME 21CC 9 DEG CH-21-BB

MODQUAD BIG BORE DOME 21CC 9 DEG CH-21-BB. The vendor part number is CH-21-BB. Read title carefully to know what you are getting. Here is the catalog descrion NOT the title?

• Machined with a flow-thru design for optimum cooling
• Flow-thru design also increases coolant capacity
• Utilizes the stock cylinder head studs
• Machined from 6061 aluminum and polished to a mirror finish
• Will accept the NOSS or Pro Design dome