With our new "Super Stealth" aluminum cylinder heads, we've taken our "Stealth" head concept out to the maximum possible degree, without changing the exterior looking "factory cast" type appearance. Our "Super Stealth" heads feature the same great features of our regular Stealth heads such as 80CC "closed" chambers and straight spark plugs. However, the ports have been greatly enlarged, straightened and raised as much as possible.
Finally, a reasonably priced quality rocker arm setup for Edelbrock Victor, and other Big Block wedge heads which use .650" offset intake rocker arms!
Our brand new aftermarket aluminum roller rockers are an unbelievable value! Made out of aircraft quality certified 2024 aluminum alloy, these arms are formed using a hydraulic extrusion process under 1500 tons of pressure, giving these arms an incredible 60,000 PSI tensile strength! They are fully CNC machined, and finally anodized for additional durability and corrosion protection. These sets come complete with 16 rocker arms (8 intake arms in special .650" offset and 8 exhaust arms in standard offset) 2 4340 hardened thick wall shafts, 16 adjusters and 16 12 point locknuts. This version is supplied in a 1.5 ratio. 1.6 ratio is available as a separate part number.
Our rockers use extra heavy duty NSK licensed large fulcrum needle bearings between the arm and the shaft (shown in the "view additional images" button) so friction is reduced (and therefore additional horsepower is gained) between the arm and the shaft, as well as between the valve and the the roller tip. These bearings are rated up to valve spring loads of 600 pounds open pressure (which includes most cams in the .500-.600" lift range.) Be careful not to confuse these with some other rockers on the market which offer a much cheaper and easier to manufacture design of a solid aluminum rocker which offers the roller tip, but runs the aluminum of the rocker body directly against the shaft, a setup which produces much more friction and wears the arms out extremely quickly. Since these feature the roller bearing, and a super hard roller tip hardened to 60 on the Rockwell C scale, these will work just as well on a high mileage street car as they do on a drag only setup. They also feature pressurized oiling of the pushrod ball/cup area, and a generous valve spring clearance relief in the underside of the body (shown in the "view additional images" button)
These rocker arms DO NOT require using our .650" thick spacers (part #113-1018) because the extra thickness of the special offset rockers takes the place of the thick spacers. We DO recommend our shim package (part #105-1018) to center each arm exactly over each valve tip, and set the endplay, which should be about .015"-.030". For shaft holddowns, we recommend using our aftermarket billet aluminum holddowns listed separately (part #200-1032.) These are what is shown in the above pictures. Please note again they ARE NOT INCLUDED automatically with these sets.
Finally, a reasonably priced quality rocker arm setup for Edelbrock Victor, and other Big Block wedge heads which use .650" offset intake rocker arms! Our brand new aftermarket aluminum roller rockers are an unbelievable value! Made out of aircraft quality certified 2024 aluminum alloy, these arms are formed using a hydraulic extrusion process under 1500 tons of pressure, giving these arms an incredible 60,000 PSI tensile strength! They are fully CNC machined, and finally anodized for additional durability and corrosion protection. These sets come complete with 16 rocker arms (8 intake arms in special .650" offset and 8 exhaust arms in standard offset) 2 4340 hardened thick wall shafts, 16 adjusters and 16 12 point locknuts. This version is supplied in a 1.6 ratio. 1.5 ratio is available as a separate part number. Our rockers use extra heavy duty NSK licensed large fulcrum needle bearings between the arm and the shaft (shown in the "view additional images" button) so friction is reduced (and therefore additional horsepower is gained) between the arm and the shaft, as well as between the valve and the the roller tip. These bearings are rated up to valve spring loads of 600 pounds open pressure (which includes most cams in the .500-.600" lift range.) Be careful not to confuse these with some other rockers on the market which offer a much cheaper and easier to manufacture design of a solid aluminum rocker which offers the roller tip, but runs the aluminum of the rocker body directly against the shaft, a setup which produces much more friction and wears the arms out extremely quickly. Since these feature the roller bearing, and a super hard roller tip hardened to 60 on the Rockwell C scale, these will work just as well on a high mileage street car as they do on a drag only setup. They also feature pressurized oiling of the pushrod ball/cup area, and a generous valve spring clearance relief in the underside of the body (shown in the "view additional images" button) These rocker arms DO NOT require using our .650" thick spacers (part #113-1018) because the extra thickness of the special offset rockers takes the place of the thick spacers. We DO recommend our shim package (part #105-1018) to center each arm exactly over each valve tip, and set the endplay, which should be about .015"-.030". For shaft holddowns, we recommend using our aftermarket billet aluminum holddowns listed separately (part #200-1032.) These are what is shown in the above pictures. Please note again they ARE NOT INCLUDED automatically with these sets.
Our high temp premium "white" head gaskets are made for us by the same large US manufacturing company that supplies them directly to Edelbrock and other well known brand names. We just happen to sell them at a fraction of the cost. These fit all big blocks, all years. They are sold individually (one single gasket,) so be sure to order two if you need a set. Compressed thickness on these head gaskets is .051" They are treated with a coating, so no chemicals or sealers are necessary for installation. Just clean your deck surfaces, bolt 'em on and go. They work great with factory iron heads or our aluminum Stealth heads. Recommended up to 12:1 compression.
For those who want strength and performance, but are still on a tight budget, we've sourced our own set of head bolts as well. Priced at a fraction of the cost of the name brand bolts, these are custom made for us by one of the largest bolt manufacturers in the USA. They feature a reduced diameter 12 point heads for easy access in applications that have countersunk head bolts (such as our Stealth aluminum heads or Edelbrock Performer RPM heads), but they also work great with factory iron heads. Rated at 170,000 PSI, they are far stronger that the factory head bolts, or even a standard type grade 8 bolt. We even include .100" thick head washers with them. One set contains enough bolts for two heads (one complete engine.) A great 100% USA made choice, strong enough for 98% of applications, at a price that won't break the bank!
Our ARP 12 point black oxide head bolts & washers sets are made from super strong 180,000 PSI bolts. That's a full 15% stronger than even grade 8 bolts. They work great for high horsepower and/or highly stressed applications with our new STEALTH aluminum cylinder heads, factory cast iron heads, Edelbrock Performer RPM aluminum heads, or any other heads that use stock length bolts.
Our one piece 2.14" intake valves are made from 21-4N stainless and feature undercut 11/32" stems and hardened tips. These are the valves we supply in our "assembled" Stealth heads. We offer them in either singles or complete sets of 8. Use them for service replacement or with bare castings.
Our one piece 1.81" exhaust valves are made from 21-4N stainless and feature undercut 11/32" stems and hardened tips. These are the valves we supply in our "assembled" Stealth heads. We offer them in either singles or complete sets of 8. Use them for service replacement or with bare castings.
This valley pan is the same as our single plain models, except it features a clearance well which will clear the exhaust crossover found in many aftermarket dual plane intakes.
This valley pan is the same as our single plain models, except it features a clearance well which will clear the exhaust crossover found in many aftermarket dual plane intakes. Fits Edelbrock's Performer RPM manifold, but not the regular Performer.
This is a labor charge for us to remove and replace valve locks and retainers, valve springs, and/or valve seals on any of the cylinder heads we sell. This labor charge must be selected in the same order as the cylinder heads, along with the extra parts you want replaced, such as retainers, locks, springs, etc.
Shown here is our Comp Cams 10 degree "Super Lock" Steel Retainers. These are a huge, extremely beefy valve retainer which is designed to fit our Comp "Super Locks," which can be found on our Valve Locks page. This 10 degree lock & retainer system has a wider angle of interference than a standard 7 degree lock. These are fully machined from 4140 Chrome Moly and finished in black oxide. Comp recommends these for any cams over .460" lift (basically anything other than bone stock) but we feel they're absolutely necessary above .510" lift. We highly recommend upgrading to these for extra insurance, and it's required if you will be running a cam over .510" lift. These are supplied in a set of 16, enough to do one complete engine. Since they're Comp, you can be assured of two things: They're 100% made in the USA, and the quality is second to none.
Shown here is our Comp Cams 10 degree "Super Locks." These are a huge, extremely beefy valve lock which has a wider angle of interference than a standard 7 degree lock. These are fully machined (not stamped) from a super tough fatigue resistant alloy. Comp recommends these for any cams over .460" lift (basically anything other than bone stock) but we feel they're absolutely necessary above .510" lift. These fit 11/32 valve stems, which can be found on most aftermarket aluminum heads (such as our Stealth heads or Edelbrock RPM's,) and they work great with our Comp "Super Lock" retainers, part number 145-1003 or 145-1006, which can be found on our Valve Retainers page. We highly recommend upgrading to these for extra insurance, and it's required if you will be running a cam over .510" lift. These are supplied in a set of 32, enough to do one complete engine. Since they're Comp, you can be assured of two things: They're 100% made in the USA, and the quality is second to none.
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