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AFR 357cc Magnum BBC Cylinder Heads

If huge horsepower is what you are searching for, AFR 357cc Magnum aluminum cylinder heads will certainly deliver. With AFR's fully CNC-ported 357cc heads flowing 425 cfm, they represent the ultimate in airflow for your big block Chevrolet. These cylinder heads were targeted at larger cu. in. engines (509-632 c.i.d.) looking for maximum horsepower and rpm capabilities with a primary operating range of 3,500-8,000 rpm (this range is an average and will vary with engine displacement and component selection). These aluminum heads also provide impressive torque figures at higher rpm levels. Blown, turbo, and nitrous engines will especially like the larger, higher flowing intake ports. AFR 357cc Magnum BBC cylinder heads will work best with camshafts exceeding 0.750 in. gross valve lift to make better use of the substantial airflow found in the higher lift range. The AFR 357cc heads come standard with AFR's trademark 3/4 in. thick cylinder head deck, reinforced rocker stud bosses, and premium one-piece stainless steel 2.300 in. intake and 1.880 in. exhaust valves. The AFR's fully CNC-ported 357 heads come with a 121cc chamber and are available with an optional 114cc combustion chamber as well. Order the cylinder head model suited to your needs.

Not Yet Reviewed

$4,194.00

Dart Pro 1 Aluminum Cylinder Heads

Inspired by Dart's championship winning Pro Stock designs, Dart Pro 1 aluminum cylinder heads cover a wide range of applications from street cars and trucks to all-out racing. Heads designed for street performance and mild bracket racing offer excellent mid-range torque and power, and are excellent for heavier vehicles. Competition heads are ideal for maximum effort naturally aspirated, big boost forced induction, or nitrous applications. Dart Marine Pro 1 cylinder heads feature an exclusive chromate surface finish to inhibit corrosion and extend the life of the head. They are also fitted with Inconel exhaust valves to withstand the extended running time and temperatures typical of marine usage. Dart's as-cast ports flow more than many ported designs at a much more affordable price. But they also offer fully CNC-machined heads with every intake port, exhaust runner, valve bowl, and combustion chamber shaped by their 5-axis, computer controlled machining centers to produce compound curves and complex shapes that no human could duplicate with a hand grinder. Available bare or fully assembled, long-wearing bronze valve guides, screw-in studs, multi-angle intake seats with hardened, radiused exhaust seats are standard on most heads. Assemblies typically include stainless steel valves, premium springs, locks, retainers, guide plates, and seals. Many Pro 1 heads include race-proven features such as improved spark plug location, extra-long intake valves, raised exhaust ports, and fast burn chambers. They are offered an extensive variety of valve angles, intake port volumes and shapes, exhaust port locations, valve sizes, and chamber volumes.

3.8 out of 5 stars ( 10 )

$2,220.07

AFR 210cc SBC Eliminator Racing Heads

AFR 210cc SBC Eliminator racing heads are available in two stages of performance. The race-ready version features 100 percent CNC-ported intakes—and 100 percent CNC-ported intakes with greater detail. They come with 100 percent CNC-ported combustion chambers and 80cc exhaust ports with a 3/4 in. thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm, 2.080 in. intakes and 1.600 in. exhausts with AFR's hardened ductile iron interlocking valve seats. The valve springs included are intended for use on roller camshafts. The exceptional flow characteristics, 23 degree valve angle, and standard valve spacing make these the perfect cylinder heads for 350 to 400 c.i.d. engines in bracket drag cars, sportsman oval trackers, and highly modified street-class cars operating between 3,000 and 7,500 rpm (higher rpm ranges are possible, depending on the combination of parts). The 210cc aluminum cylinder heads are available for either standard or spread port exhausts, bare or assembled style.

4.82 out of 5 stars ( 17 )

$2,530.99

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$3,199.00

Crower Stainless Steel Shaft Mounted Rocker Arm Systems

For those of you that feel most confident running a steel-based valve train, look no further than the collection of Crower stainless steel shaft-mounted rocker arm systems. Every configuration has been rigorously scrutinized to offer extreme rigidity and accuracy while optimizing the moment of inertia phenomena condition. Crower engineers made ease of installation and maintenance a top priority--so you'll never waste a moment when time is critical at the track. These stainless steel shaft rocker systems are a perennial favorite of dirt late models and marine endurance competitors. Sustained high temperatures have little effect on the strength properties of stainless steel so components made from this material typically have a longer life expectancy than similar components made from aluminum. All Crower shaft mount rocker arms are available with Crower's needle bearing roller tip option. They greatly reduce friction for added horsepower and decreased valve guide and valve stem wear. The lighter tips deliver greater valve control for increased rpm and improve valve spring longevity by decreasing heat compared to traditional non-needle designs.

5.0 out of 5 stars ( 2 )

$2,375.99

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$3,285.99

AFR 227cc SBC Eliminator Race Ready Racing Heads

AFR 227cc SBC Eliminator Race Ready Racing heads offer outstanding track performance at a competitive price. Exhaust and intake ports and combustion chambers are 100 percent CNC-ported, with coarser machine levels for terrific flow characteristics and big power gains. The 227cc SBC Eliminator heads feature a 3/4 in. thick head deck, ideal for nitrous or blower applications. They come complete and ready-to-run with quality AFR-proven components for maximum reliability—or choose "bare" heads (no parts) to design your own ultimate power package. These cylinder heads are available in standard and spread port exhausts. AFR 227cc SBC Eliminator Race Ready racing heads are a great choice for budget-minded racers.

4.88 out of 5 stars ( 8 )

$2,530.00

Brodix Cylinder Heads IK 215 Cylinder Heads for Small Block Chevy

Brodix offers IK 215 Series cylinder heads for small block Chevy 350 and 400 engine applications—focusing on the only two things that matter: performance and price! They include a revolutionary ultra casting, versatile intake ports designed for optimum versatility, and combustion chambers that allow the use of several types of fuel. Standard features are A-356 virgin aluminum alloy, phosphorous bronze valve guides, valve seats for use with unleaded fuel, ends milled and drilled for accessories, and a straight spark plug angle. These are the most affordable high-quality aluminum cylinder heads on the market. The hassle-free top-end combo kits include: * Complete cylinder heads * Intake manifold (4150 Series) * Valve covers * Headbolts and washers * Intake bolts and washers * Valve cover studs and nuts * Head gaskets * Intake gaskets * Exhaust gaskets * Carburetor gaskets * Valve cover gaskets * Spark plugs * Brodix hat IK Series 23-degree cylinder head details: * Standard valve cover pattern * 64 cc / 70 cc combustion chambers * Straight spark plugs * Ends milled and drilled for accessories * Ductile iron valve seats for use with unleaded fuel * CNC-ported combustion chambers available as large as 75 cc

Not Yet Reviewed

$2,862.99

Nitrous Express Stage II Water/Methanol Injection Systems

You'd be crazy to throw water into a gas tank and expect to get anywhere—but power and torque can be increased if you inject it into the incoming air charge with Nitrous Express water/methanol injection systems. Cooling the air charge allows for increased timing and the resulting performance benefits. These versatile units have a wide-open throttle switch for naturally aspirated vehicles and an adjustable boost-activated switch for forced induction models. Nitrous Express systems inject a fixed amount of fluid when the WOT switch or boost is activated—and continues until the switch opens again. They reduce intake temperatures and the need for timing retard when used with nitrous. Stage II kits come complete with a high-output pump, 3 qt. reservoir, nozzle, boost activated progressive controller, switch, hardware, and detailed instructions. Water has always been used to cool down motors, but with Nitrous Express water/methanol injection systems … it'll be heating things up!

Not Yet Reviewed

$3,398.40

Heidts Mustang II Front Suspension Kits

Get your street rod up and rolling and improve your vehicle's suspension, handling, and performance with one of these Heidts Mustang II front suspension kits. Kits include: * Crossmember * Tubular upper and lower full A-frame style control arms * 11 in. diameter brake rotors * Bearings * Seals * Shocks * Springs * Stock-type spindles * Manual rack and pinion mounted to the front of the crossmember for additional engine clearance * Outer tie rod ends * Rubber spring cushions * Spindle nuts * All necessary mounting hardware

5.0 out of 5 stars ( 6 )

$2,700.00

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