FLOTEK Cylinder Heads Now Available at Summit Racing

There are about as many brands of high performance aluminum cylinder heads available today as there are coffee flavors. But having lots of choices is a good thing, and FLOTEK makes some cylinder heads you should definitely consider. FLOTEK makes aluminum heads for small block Chevy, big block Chevy, and small block Ford that offer exceptional performance for the money.
You can find airflow and dyno results on FLOTEK’s website.

Features include phosphorous bronze valve guides, high nickel valve seats, and ends milled and drilled for accessories. Assembled heads come with stainless steel valves, valve springs, locks, and retainers. Small and big block Chevy heads also have rocker arm studs and guideplates.

305-350 Small Block Chevy
The 180cc heads feature as-cast 180cc intake/62cc exhaust runners and 64cc combustion chambers with 2.020/1.60 inch valves. You have a choice of 1.460 inch valve springs or 1.560 inch valve springs just for flat tappet camshafts; both are rated to .550 inch valve lift.

The 200cc heads have as-cast 200cc intake/78cc exhaust runners and 64cc combustion chambers with 2.020 or 2.050 inch intake valves and 1.600 inch exhaust valves. Heads with 1.460 inch single valve springs are rated for cams up to .550 inch lift; heads with 1.560 inch dual springs are rated for cams up to .650 inch lift.

The 220cc CNC heads have CNC-machined 220cc intake/84cc exhaust runners and CNC-machined 72cc combustion chambers with 2.080 inch/1.60 inch valves for excellent flow. Your choice of 1.460 inch dual valve springs for hydraulic roller cams or 1.550 inch dual springs for solid roller cams, both rated to .650 inch lift.

289-302-351W Small Block Ford
The 180cc heads feature as-cast 180cc intake/62cc exhaust runners and 64cc combustion chambers with 1.940 or 2.020 inch intake valves and 1.600 inch exhaust valves. The heads come with 1.460 inch valve springs rated to .550 inch valve lift.

The 190cc CNC heads have CNC-machined 190cc intake/71cc exhaust runners and CNC-machined 60cc combustion chambers with 2.020 inch intake and 1.500 or 1.550 inch exhaust valves. Heads with 1.460 inch dual valve springs are rated for cams up to .650 inch lift; heads with 1.465 inch dual springs are rated for cams up to .750 inch valve lift.

The 205cc CNC ‘The Hammer’ heads are for high-revving engines running up to 7,200-7,400 RPM. They have as-cast 205cc intake/70cc exhaust runners with ports raised .125 inch from stock. Other features include 60cc combustion chambers with 2.080 inch/1.60 inch valves and your choice of 1.580 inch dual valve springs—one for hydraulic roller cams rated to .600 inch valve lift, the other for solid roller cams rated to .710 inch valve lift.

396-427-454 Big Block Chevy Mark IV
Summit Racing carries FLOTEK big Chevy heads for everything from mild street engines to serious race mills. Here are two you race guys will love.

The 375cc CNC heads have CNC-machined runners and combustion chambers, and are cast from a permanent steel mold to keep very tight tolerances. The heads have 375cc intake/133cc exhaust runners that are raised .360 inch from stock, plus 127cc combustion chambers with 2.35 inch intake/1.880 inch exhaust valves. The 1.625 inch dual valve springs are available for hydraulic roller cams up to .850 inch valve lift and solid roller cams up to .900 inch valve lift.

The Jailbird 390cc CNC heads are the baddest big block heads FLOTEK makes. They are designed for engines from 565 to 640 cubic inches and allow the use of aggressive cam profiles to make maximum power. The Jailbirds with bowl blended, CNC-machined 135cc combustion chambers flow an impressive 467 CFM on the intake side at .900 inch lift. Even without bowl blended chambers, the heads still flow 436 CFM on the intake side at .700 inch lift.

Other features include a competition-style six-angle valve job, CNC-machined 390cc intake/135cc exhaust runners, raised exhaust ports, and a choice of 1.625 dual valve springs:
• For solid roller cams rated to .950 inch valve lift
• For solid roller cams rated to .900 inch valve lift
• For hydraulic roller cams rated to .850 inch valve lift

SEE FLOTEK CYLINDER HEADS AT SUMMIT RACING