The latest Pro Action™ Cylinder Heads from RHS® are affordable LS-style heads that save you the time and expense of having your new heads CNC or hand-ported. These LS cathedral port heads combine race-proven head design and Clean Cast Technology™ to create “as cast” ports that flow like they’ve already been ported.
RHS® Pro Action™ Cathedral Port Aluminum Cylinder Heads for LS Applications are engineered with highly efficient combustion chambers that increase power and torque by improving airflow and flame propagation (the spreading of flames in a combustible environment) while multi-angle intake and radiused exhaust seats even further improve airflow. Their durable 355T6 aerospace-grade aluminum alloy construction is lightweight and increases cylinder head life and strength while high capacity water jackets generate greater thermal conductivity for cooler, more efficient engine operation.
The new Pro Action™ Cathedral Port Aluminum Cylinder Heads for LS Applications are available in three versions: as cast P-Port with no valve job; as cast 62cc combustion chamber with 2.02″/1.600″ valves, 205cc runners; and as cast 62cc combustion chamber with 2.050″/1.600″valves, 225cc runners. Stock valve angles and centers, drilled and tapped accessory holes, and stock port locations make these heads compatible with stock applications. However, added material at the top of each head allows for upgraded valve train components, making these cathedral port heads perfect for use in everything from mild street to all-out race applications.
Part # Description Runner Chamber Valve Size In. Ex.
54301 LS Cathedral Port 205cc 62cc 2.020″ 1.600″
54302 LS Cathedral Port 225cc 62cc 2.050″ 1.600″
Features & Benefits:
Clean Cast Technology™ creates as cast ports that flow as well as ported heads
Affordable bolt-on LS performance upgrade ready for use right out of the box in mild street to all-out race applications
Combustion chambers improve airflow and flame propagation to increase power & torque
Multi-angle intake and radiused exhaust seats improve airflow
355T6 aluminum alloy is lightweight and increases life and strength
High capacity water jackets generate greater thermal conductivity for cooler, more effective operation
Stock valve angles work with both stock and upgraded valve train components
Big Congrats goes out to long time friend and customer Jim Monson on his first 6 second pass at the NMRA event in Bowling Green this past weekend. 6.94 at 201.73! Great Job Jim, all that hard work has paid off. Jim’s incrementals: 1.12/ 60 ; 2.99/ 330; 4.52/ 660; 6.94. Well Done!
Jim runs a small block Ford with a single 106MM turbo and a powerglide. The rotating assembly and valvetrain are all Competition Components items.
MR Marine in Spring Lake, MI uses our EZ-EFI tunnel ram kits to convert twin big block chevy mercruiser engines to fuel injection. According to Mark, the install was straightfoward and trouble free. (it looks to me as if you’d have to stand on your head for a few hours, but Mark doesn’t seem to mind) Setup and tuning was straightforward and very effective. Start up was immediate. Our kits use Edelbrock Pro-Flow tunnel rams and throttle bodies, and FAST EZ-EFI controllers and electronics for excellent power and reliabilty.
The boat owner has been very pleased, fuel economy has significantly improved over the Mercruiser carb setup, and throttle response and mid range torque are much improved as well. Definitely a plus when getting a big boat moving. In fact, the owner of the boat originally ordered a single system to compare the fuel consumption and power for an entire season before purchasing the second kit. He was so pleased with the result, he ordered the second kit in about a month!! Congrats to MR Marine on a super clean install and a happy customer. Great job guys.
We have been working with Steve Webb for a while. We first did a small roller cam for his Naturally Aspirated 347 Ford that eventually went 10 teens at 128MPH. When Steve decited to switch to a turbo combination, he called Competition Components. Scott Brown spec’d the Ross pistons to fit the new Dart Block, as well as the cam and other valvetrain items. It’s first weekend out, Steve’s new combo went 9.40’s at 145 on pump gas with only 7 PSI of boost. For the NMRA Race in Columbus this past weekend, Steve decided to step on it a bit and run some VP Fuels C-12 in it and give it some more boost. First pass off the trailer, he was rewarded with an 8.90 @ 157 with 14psi Boost. Steve kept leaning it out over the weekend, and by the time the weekend was over, he had run an 8.70 at over 159MPH. Congrats Steve! Keep in mind, this was only the second weekend out with the car at only 14psi. Lots more to come! If you get a chance, you should check out Steve’s Website here.
Here’s is a rundown of Steve’s set up:
Engine: SBF 364
Heads: AFR 205’s
Camshaft: Custom Scott Brown (Competition Components) Solid Roller Grind
Leave it to Competition Components to put together a complete tunnel ram kit using FAST’s EZ-EFI fuel injection unit. We select the best components from individual manufacturers to assemble a great kit. Includes everything you need except for fuel lines!
Edelbrock Pro-Flo XT Manifold
Retrofit EZ-EFI Tunnel Ram kit
90MM Edelbrock Throttle Body (1170CFM)
FAST EZ-EFI controller and hand held input device
Fuel Rails
Fuel Injectors
Fuel Pump
Fuel Pressure regulator
Fuel Filter
Sensors
Wiring Harness
Kits currently available for Big Block Mopar, Big Block Chevy, and Small Block Chevy. Standard four barrel and Dominator style kits coming soon. Complete listing of EZ EFIkits and parts.
We have added our entire line of Buick Cams to the site, both in hydraulics as well as solids. One of our flat tappet cams was # 1 Qualifier at the Norwalk Buick day both in 2009, and 2010. Nearly half the field both years had custom cams from us. Put our hard work to use in your Buick. Complete Listing here. These cams work great with Iron heads, Edelbrock heads both stock and ported as well as TA’s stage 2 heads. In addition, custom cam orders are encouraged. Also available through Finishline Motorsports. We do cams for v6’s, nailheads and 350’s too!
Even though we have had our own brand of custom camshafts for years, we just added the full line of Comp Cams roller cams for big block Mopar applications to our site with special pricing. We have had great success with our cams over time, including fast street cars, as well as record holding cars, but we also realize there are those who don’t have any interest in a custom cam, or just want to keep it simple. Well, for you guys we have added the Comp shelf Rollers. We will soon be adding the rest of the Comp line to the site for those of you interested in them. Comp Cams Roller Camshafts.
We have special pricing on these cams, as well as discounts on Comp Cams lifters when purchased at the same time.
We always like to see something a little different. Bruce Wilson’s Buick 455 Powered Jaguar is definitely different and exceptionally well done. The Jag was rescued out of Smitty’s Junkyard in Pasadena, MD. The body and interior look pretty much as you see here, surprising with the 200,000+ miles. Someone had gutted the driveline and left the shell. The car still has the original leather seats, real wood dash and power windows. Now that’s different for a 9 second racecar! When Bruce picked it up, they put it on the trailer with a forklift and gave him a weary “good luck”.
The body was shipped of to Clark’s Racing Chassis, to get the cage and Ladder bar rear suspension put in it. The front suspension is stock Jag, with custom drag shocks fitted by Bruce. Peters Sheetmetal fabrication handled the hood mods, and Dave Wilson at Southern Automatics handled the transmission.
Tom and Bubb at Burtonsville Performance Machine were put in charge of machining and assembly. The Engine is a basic 464 CID combination, with a stock crank, 4.350 Bore CP flat top pistons, and TA Performance Stage 1 heads that have been fully ported. The Cam is a custom flat tappet from Scott Brown @ Competition Components. A Dominator is perched atop a KB Wildcat intake (Now the SPX) and sealed to the custom hood.
The Jag really hauls the mail, running a best of 9.71@ 137 best with a 1.32 sixty foot time. Not bad for a 3300lb car running a 3.50 gear. No, we aren’t kidding! Usually though, Bruce takes some timing out and short shifts to run 10.00 Index races. This past weekend, Bruce was runner up in the naturally aspirated shootout series in Maple Grove, where he is currently the Points Leader. Congrats Bruce!
This weekend’s sale items are our CNC ported Edelbrock heads for small block Mopar. No coupon code is needed, we just reduced the price $100. Check them out here. This discount is for online orders only, and only on those products mentioned. Sale valid from 5/28/2010-5/31/2010. These heads are built to order, and may take up to 2 weeks lead time. This is in addition to Edelbrock’s cylinder head rebate offer
We managed to get Brian’s 72 Buick GS to Norwalk for the Annual Buick Raceday and get some passes on it. On the dyno, it made 703 HP, full results here. We had a great first outing running three passes in the 10.60’s right out of the box. The engine has been dyno’d, but we hadn’t made any passes in the car, so we weren’t quite sure what to expect. We had some charging issues which plays hell with the MSD ignition boxes, and a big hesitation on launch, so overall we were very pleased with our first outing. I’m sure with some attention to detail, and getting issues straightened out, the car will run even better.
Overall, the Norwalk Buick Raceday is a great event, and it was nice to be able to put faces with all of the names of the Buick guys I have spoken to over the years. Roberta, Bill and crew do a great job putting this event on. If you have an opportunity, you should check it out. More info here: Buick Raceday: Facebook Page
The latest Pro Action™ Cylinder Heads from RHS® are affordable LS-style heads that save you the time and expense of having your new heads CNC or hand-ported. These LS cathedral port heads combine race-proven head design and Clean Cast Technology™ to create “as cast” ports that flow like they’ve already been ported.
