SB Chev Assembled Alloy heads 200 64cc (Pair)

The Aeroflow Series of Aluminium Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. Theseheads utilise ultra-smooth A356-T6 aluminium castings, new as-cast runner and chamberdesigns produce excellent flownumbers. This combined with a 5-angle competition valve job,diamond-honed bronze guides, hand bowl blending and professional assembly help to outperform some of the best brands in the business. Include valves, valve springs, retainers & locks, guide plates and 7/16" rocker studs.

The Aeroflow Performance small block Chevy cylinder heads are designed for entry level street performance engines to give the ultimate in flow at a budget price. Made from A356 aluminium castings, the 204cc cylinder heads are ideal for operating in the idle to 6500 rpm range. These cylinder heads will fit a 4.00" bore and larger. These complete heads include larger than stock 1.43" diameter dual valve springs to handle up to .575" maximum lift.Suits flat tappet and hydraulic camshafts.

Head Specs:

Chamber Volume: 64cc Chamber

Intake port volume: 200cc

Intake valve size: 2.02"

Exhaust valve size: 1.60"

Valve spring diameter: 1.430" (36.3mm)

Spring installed height: 1.85" @ 100lbs

Maximum valve lift: 0.575" (14.61mm) @ 300lbs

Rocker stud diameter: 7/16"

Pushrod diameter: 5/16" (width of slot in guide plate)

Spark plug style: Straight

Flow Chart cfm @ H2O

.100" .200" .300" .400" .500" .600"

2.020 Intake N/A 125 183 231 254 262

1.600 Exhaust N/A 103 145 165 172 177