If you're interested I'll send you his contact info. No longer will anyone have to choose between vintage looks or modern cylinder head power—with DHC 175 heads you get both! If you want 18 degree heads just spend the money on the real deal. The absolute best CNC value PERIOD. So if our heads are done flowing at 0.600-inch ... "I'm gonna buy a new set of 18-degree Chevy heads." RHS has announced new Pro Action 23-degree style raised runner cylinder heads for small block Chevy engines. The surprise of this test was the Patriot. RFD 18 Degree BRODIX. But we have raised the performance level with a fully CNC ported 235cc intake runners and CNC'd combustion chamber. from the cylinder bore centerline. Series P/N: 176X (QTY & OPTIONS ADDED TO BASE PRICE AT CHECKOUT). And oddly, it did not flow as well on the intake side as its older, similar-sized cousin the –8 Pro Brodix. Description. These cylinder heads are exclusively made by Mullins Race Engines. Besides, lest say you are running a 434 or 440 small block. But, as you'll see, there's much more to the story, so read on. The VP of Engineering for the COMP Performance Group, Brian Reese, explains the benefits of the RHS SBC Intake Manifold. “For the 23-degree crowd, we’ve stretched it to the edge. 18 degree heads can't use standard 23 degree head components. For example, the 18 degree head's intake manifold mounting flange is angled at five degrees (standard is 10 degrees) to accommodate the raised intake runners. You’re comparing ancient SBC head designs to modern LS head design; an apples to apples comparison is modern SBC 23 deg heads vs modern LS heads. .750 Reach, Gasketed (NGK R5671A-7 or colder), Angle - .0070" per cc Flat - .0050" per cc, Manganese Bronze to assist in extending valve life. Pro Filer Small Block Chevy CNC All American Heads with 235cc Intake Runner, 2.125" Intake Valve and 1.600" exhaust valve. MANY OPTIONS AVAILABLE Optional Stainless Valves, Springs, Retainers and Keepers Assembled. Small Block Chevy. Basic Small-Block Chevy Head Porting. This post isnt about out of the box numbers, who makes the baddest ported 23 degree head not using an AFR or ALLPRO casting. ... or a 15° head, etc. It will be developed, all machining done in-house (including 5-axis cnc porting), and sold by Mullins Race Engines. heads on cast iron blocks with part number 234-4723. But the better 18 degree heads can take you well beyond a 23 degree hp level. It requires no special components. Best 23° SBC head available, same head that is on Ron Rhodes X275 Camaro. Trick Flow’s DHC 175 cylinder heads give small block Chevy enthusiasts a new performance option. Another big advantage of the 18 degree valve angle is valve location. 9.00" or 9.325" Dual Distributor Hold Down; DAR42521000 : 9.000" from $6925.99 : ... 377cc flow up to 470cfm: from $3495.99 : with copper exhaust seats: ... Dart SBC 23 Degree Dominator Intakes. Here are his specs. That requires a special 18 degree intake. Includes: Victory titanium valves; PSI springs; Manley titanium retainers; Manley hardened locks; Bronze valve seats; We can customize these specifications and components to your application, just give us a call at 812-576-2371. "- Super Stock engine builder The combustion chamber on the Trick Flow 18 degree head is 56cc versus the 64cc chamber on most high performance 23 degree heads. The 23-degree cast iron head is for 360-434 c.i.engines. Ive heard good things about the afr 227 (i think thats right) race heads, and the dart 11 degree heads, but i heard the 11 degree are race only and require block modifications to fit a stardard non world product block. Nostalgic appearance—check. RHS Pro Action™ SBC 23-Degree Style Raised Runner Cylinder Heads New cylinder head styles from RHS® feature 220cc runner volumes and are available in either “as cast” or P-Port configurations Finding a top performing cylinder head and still staying within the rules of class competition may be one of the biggest challenges engine builders face today. Among the street heads that would fill the bill for a big small block include the 180, 190, 195, 200, 210, 220, and 227cc heads in the standard 23- degree valve angle, standard-port configuration. Designed from the ground up as a large cubic inch head with matching cast 4 intakes available the Brodix is capable of 900+ hp with a … Patriot. OFFICIAL RELEASE. Modern performance—check. Copyright © 2018 - Pro-Filer Performance Products, (QTY & OPTIONS ADDED TO BASE PRICE AT CHECKOUT), All American Manufacturer of Racing Cylinder Heads and Intake Manifolds, Aerospace Specification, A356 Aluminum Alloy (Primary Virgin Ingot), Angle Plug Revised location to improve flame travel. Trick Flow retained the stock 23-degree valve angle location, so the heads will work with standard SBC pistons. ALL VFactor 23º SBC cylinder heads use a USA ProFiler core special made for SRH Induction (SRH176-X-02) "We DON'T sell flow numbers! Presuming both heads offer the same volume, the port profile of the 18-degree head will be inherently longer and higher, giving a more efficient fill of the combustion chamber, by limiting intake air interference with the cylinder wall. The most common cylinder head recommendation that we suggest is listed below the cubic inch. The 180 head can be ordered with either a straight or angled spark plug location, and uses all standard 23-degree small-block valvetrain components. The precision accuracy and durability of the RHS® Pro Elite™ SBC 23-Degree CNC-Ported Iron Cylinder Heads are derived not only from the CNC-porting of the intake and exhaust runners but the CNC-ported combustion chamber, as well. Small-Block Chevy Gen-I Cylinder Heads Standard Gen-I small-block Chevy heads position the valves at a 23-degree angle to the deck. *PARTS OF SAME OR GREATER VALUE MAY BE SUBSTITUTED IF NOT AVAILABLE AT TIME OF ASSEMBLY. Re: 18 degree heads vs 23 I know a guy who is selling a BUTT KICKIN' SBC E-motor. This is a huge port-volume range. We supply 23 bare or complete 23 degree raised runner race heads for NZ Super Saloon racers; Shane … Latest Chevy Heads - Speed Parts Testing Air Flow Research Comes Up With A Radical 23-Degree Small-Block Chevy Head: 340 CFM Intake Flow On A Stock Intake Port Location For Just $2,225/Pair He has $25 K in it and would take half that. It has just a few passes at Maxton. “Then we dabbled with 15-degree, 18-degree and even some 13-degree motors. EngineQuest Cylinder Heads offer a 23 degree cylinder head option that has proven it can run with the best … First, pick your compression. It’s not every day that a true, traditional 23-degree-headed engine makes 806.7 horsepower and 611.5 foot-pounds of torque, and Mike Saiki along with Bryce Mulvey of Dr. J’s Performance have put an absolute ton of work into this bullet to make those numbers possible. It makes 800 honest horsepower and comes with 4.250 stroke crank, 23° heads and Edelbrock Super Victor intake. Simply send in your heads. Flow data based on Cylinder #1 intake and exhaust port. The Pro-Filer All American CNC ported SBC cylinder head has the same outstanding features as our "As-Cast" SBC heads. Official Release: RHS Pro Elite SBC 23-Degree CNC-Ported Iron Cylinder Heads The numbers are from our in-house flow bench. Flow measured at 28" of depression. Valve angle on the seats is 45 degrees, and customers have two valve springs choices. Flowing over 325 CFM these heads will support big cubic inch and big horse power easily over 725 horsepower. Imagine a traditional set of small block Chev aftermarket heads, with 18-degree and 23-degree intake valve angles. Dave talks about the Brodix IK Cylinder Head which has a brand new price! This small block is an awesome 23° package for the small block fan. Mid to high 700 is where those engines are comfortable and still affordable,” explains Shafiroff. Dave talks about the Brodix IK Cylinder Head which has a brand new price! The Mule The name of Brodix’s “IK” series is a self-contained mission statement – Iron Killer. The following information on porting deals with 23-degree Chevy heads pretty much across the board. Flow data based on Cylinder #1 intake and exhaust port. The 18 degree gives a straighter shot into the combustion chamber, with less turn for the colum of air. engines that is CNC-ported from the factory. RHS Pro Action™ SBC 23-Degree Style Raised Runner Cylinder Heads. Pro Filer Small Block Chevy All American Heads with 185cc Intake Runner, 2.02" Intake Valve and 1.60" exhaust valve. Dan This has allowed us to put a 2.125" OD intake valve and over 335cfm of flow. Air Flow Detail #176 SBC All American Head - 185cc Runner. We supply 23 bare or complete 23 degree raised runner race heads for NZ Super Saloon racers; Shane McIntyre, Peter Dixon, Ray Stewart and many more. RFD 1213 Wedge SBC ; RFD BD2300 Symmetrical SBC ; RFD 2300 Series 13.5* RFD 15 Degree BRODIX ; RFD 18 Degree BRODIX ; RFD LS ... CNC Ported Cylinder Heads; Welding, Repair & Fabrication; Custom CNC Machining; Cylinder Head Development; Tech Talk CALL 1-800-957-7223 FOR MORE DETAILS OR CONTACT US! Putting a higher flow head with 220cc runners on a relatively stock 350 … To get the most out of your high performance SBC this is the head for you. Some people just like small blocks. The valves in a conventional 23 degree head are .275 in. But we have raised the performance level with a fully CNC ported 235cc intake runners and CNC'd Your little 434 or 440 (and to think these things get as big as 472) just threw it's "mouse" stigma out the window. Ive been looking at some different heads for my upcoming build, some aspects of the build arnt worked out yet but what are the best all around power making sbc heads. All American 176X Series CNC Machined Heads featuring 68cc CNC'd Chambers, 2.125/1.600 Valve Job, Angle Plug Spark Plug Orientation and 235cc intake runners. 275 cc, 315 cc or 330 cc. Small Block Chevy V8. © Copyright 1999-2021 SteveSchmidtRacing.com. This head offers a dramatic horsepower increase over the previous 23° cylinder head. 414 sbc 18 degree dyno results Discussion in 'Competition Camaros' started by TNT, Jan 27, 2008. Custom roller. We sell RESULTS!" The CHI raised inlet aluminium 23 degree head was designed for racers looking for more power without the added cost of building a new motor. Looking at the flow bench results, the Race-Rite didn’t fare as well as its competitors. But just a moment, you’re a beginner and you don’t have a flow bench. Designed from the ground up as a large cubic inch head with matching cast 4 intakes available the Brodix is capable of 900+ hp with a … Chevrolet Performance’s Fast-Burn 23-degree cylinder heads deliver maximum performance for Small-Block engines. Porting is equivalent to other companies more expensive port work. Then, choose your bore (looking down) & stroke (looking across). If we’re talking small block Chevys, some rules only allow heads with stock port locations and stock 23 degree valve angles. COMPETITION ELIMINATOR/SUPER STOCK SBC HEADS: v615x: Comp Eliminator CNC GM 615x 15º SBC: vRPD: Comp Eliminator CNC Morgan SBC: vDART: Dart Super Stock SBC: CNC ALUMINUM HEADS HEADS: v2.95/18ºNIT: CNC Edelbrock 18º 275cc NITROUS: v3.60PF/SPS: Hand Ported Pro-Filer 12º SBC: v2.80BR/18º: CNC Brodix 248cc 18º: v3.00AD/15º: CNC Dart 15º SBC A head with 180 or 185cc intake runners will work well on a typical 350 Chevy street engine that makes 400 to 450 horsepower. ... 106 degree LSA, 250 degree duration at .050" 165-180 cranking PSI in all cylinders. The ARP head bolt part number is 134-3601, and ARP head studs 234-4301 for the 23 degree heads. Several advantages of the 18X are intake ports that flow over 320 cfm out-of-the-box, an intake valve size of 2.140, raised intake ports, and shallow, CNC ported combustion chambers. That little … @.050 270I/279E,109LS,.660 lift Brodix 18x sp heads and HV intake out of the box. combustion chamber. The heads come with ductile iron valve seats, bronze alloy valve guides, and Viton seals. The 180cc, 190cc and 195cc models are CARB Certified EO #D-250-2 for vehicles model year 1994 and older. The Brodix 18" is the most bad azz 18º head available for big inch small blocks. Billet crank, Brodix heads - the whole 9 yards and the best of everything. Baddest 23 degree sbc heads. These modifications will increase airflow up to .500"-.550" lift. The Pro-Filer All American CNC ported SBC cylinder head has the same outstanding features as our "As-Cast" Price: $4,250 Price is for complete set. Shafiroff reached out to the SB2.2 head because he was running out of options for the Gen I platform. Dur. 14.5 to 1 compression. Note1: The LS head will have more torque with the same intake port volume vs the SBC because the min and average CSA is smaller due to the port being longer to accomodate the shoter valve angle. SBC Eliminator - 23° Cylinder Head Our ELIMINATOR line of SBC heads feature 100% 5-AXIS CNC ported intake, exhaust and combustion chambers; available in street and competition version. C.N.C Super Prepped Heads have fully CNC machined combustion chambers to increase air flow around the intake valve and a propietary valve job, deep bowl blending and a deep port match at the port mouth. Kit includes: Dart Big Chief or Pro-FIler Intake, Dart Big Chief 14° & 18°, Big Duke 18° or Pro Filer 12° Heads, Jessel Shaft Rockers, Aluminum Sheet Metal Valve Covers, Cyl Head Stud Set, Wiseco / JE Pistons, Speed Pro Rings, Clevite Bearings, Custom Ground Camshaft (4/7 swap), Comp Cams Lifter Set, .080 Chome Moly Pushrods, Complete Gasket Set, Hardware Kit - Int. This small block is an awesome 23° package for the small block fan. The intake and exhaust runners are CNC-ported along with the combustion chamber for better performance. We also offer optional solid heads (no water passages). Improved Solid Rocker Bar for added stability. Price: $4,250 Price is for complete set. *PARTS OF SAME OR GREATER VALUE MAY BE SUBSTITUTED IF NOT AVAILABLE AT TIME OF ASSEMBLY One of the best combinations I've ever tested used Edelbrock's E-Tec 170cc heads on the infamous Super Chevy 355-cid "Danger Mouse." The Shocker 225 CNC is the ultimate 23 degree small block Chevy head. Standard 23-degree small-block (excluding the LT1, LT4, and LS1) cylinder heads vary in port volume from 160 to 170cc stock to as large as 230cc. With quality assurance as our main focus, this product will not have a production type mind set. Modified drivers in the IMCA, will be faced with the crate debate this year as it was announced a few months ago that the modified divisions were going to allow the crates in 2013. Flows over 430 cfm. Some tracks only allow cast iron heads depending on the class. May use standard or majority of aftermarket. headstud kit with 3/8" reduced shank on the studs between intake ports. Includes: Victory titanium valves; PSI springs; Manley titanium retainers; Manley hardened locks; Bronze valve seats; We can customize these specifications and components to … Saiki competes in the West Coast Hot Rod Assocation’s Limited 10.5 class with a 1968 Camaro SS that’s been fully-prepped to … Factory SBC heads have fairly weak intake port flow and this is a fairly common symptom. Please use the chart below as a preliminary head recommendation guide for our products. In a prior test, we had found a set of Patriots to be … COMPETITION ELIMINATOR/SUPER STOCK SBC HEADS: v615x: Comp Eliminator CNC GM 615x 15º SBC: vRPD: Comp Eliminator CNC Morgan SBC: vDART: Dart Super Stock SBC: CNC ALUMINUM HEADS HEADS: v2.95/18ºNIT: CNC Edelbrock 18º 275cc NITROUS: v3.60PF/SPS: Hand Ported Pro-Filer 12º SBC: v2.80BR/18º: CNC Brodix 248cc 18º: v3.00AD/15º: CNC Dart 15º SBC We now have a SAENZ model 680 flow bench which we all enjoy using. Circle track engines are usually rule constrained. Capable of flowing 350 CFM at 0.800" of lift these heads come equipped with Titanium retainers and high quality components throughout, the 60/40 valve spacing which requires shaft mounted rocker arms for optimum valve train geometry and extra machining for 3/8" pushrod clearance. There’s also a 215cc Raised Runner head that retains the 23-degree valve angle but raises the entry point of the intake port to straighten the runner for superior port flow. SBC Eliminator - 23° Cylinder Head; 245cc SBC Race Cylinder Head; 245cc SBC Race Cylinder Head. All Rights Reserved. Chevy Open Aluminum Outlaw Heads. We have so many CNC programs for many different SBC castings, valve angles, valve sizes and racing applications. We aren’t sure why anyone would say the head wasn’t any good. In 1989, Chevy introduced the 18-degree Bow Tie aluminum head that shifted the valve-angle vertically, while simultaneously raising … We had my buddys 414 sbc on the dyno for the last 2 weeks at BTR Performance. This head combines outstanding mid-lift flow numbers with an affordable … It makes 800 honest horsepower and comes with 4.250 stroke crank, 23° heads and Edelbrock Super Victor intake. WE SPECIALIZE IN ALL DOMESTIC CYLINDER HEADS, NO LIMITATIONS! 465 / 23 Degree SBC High Performance Engine, Quick Fuel 1050 CFM Dominator Carburetor - E85, Quick Fuel 1050 CFM Dominator Carburetor - Alcohol, Quick Fuel 1150 CFM Dominator Carburetor - Alcohol, HRE All Sheet Metal Intake Manifold for Dual Carburetors, HRE All Sheet Metal Intake Manifold for Single Carburetor, Edelbrock BBC "SSCE Custom" Super Victor Intake Manifold, Big Block or Small Block Chevy Aluminum Oil Pan, Moroso "Original" 3-Vane Racing Vacuum Pump Kit, Moroso 4-Vane "Enhanced Design" Vacuum Pump Kit, Manton Special 7/16" Heat Treated Pushrod Set of 16, Callies 4.250" Crankshaft with raised cam. #1---Head Flow Charts & Comparisons : 12/23/2021: There are enough flow numbers on our website to keep everyone busy for a while. The LS 706 and LS 241 heads are kinda “meh”, so let’s compare the best 317 6.0 LS truck head to a modern, inexpensive SBC 23 degree head. A set of Ron's Porting Service GM 15° heads flow over 370 cfm, and their (real) 18° Brodix 278cc heads flow 385 cfm. This head features 2.055/1.600-inch stainless steel valves enclosed in a 64cc chamber. 10. The 18° Degree X head was set up for the budget minded racer that wants to use standard lifters and standard rockers to make great power. End pads drilled and tapped for accessories. An aluminum head casting – distinguished by Chevy Bowtie logos at each end – and a valvetrain with high-rpm, LS-style beehive-type valve springs stretches the performance range of the heads to enable greater power at a higher rpm. The CHI RI head uses the same components as a standard 23 degree head (pistons, rockers, inlet and exhaust manifolds). Track 1® Series Cylinder Head/23° Head Hunter™ Series/23° 11 X™ Series/23° More.. Big Block Chevrolet Compatible Heads. The BRODIX 18X offers the best of both worlds, 18° horsepower without using expensive shaft rockers or offset lifters. Plus there are less expensive pistons & headers I would say a min of 50hp can be reached by just going with the 18 degree heads as they can flow more air. RFD GV-2 SBF ; RFD SC-1 SBF Edelbrock ... CNC Ported Cylinder Heads; Welding, Repair & Fabrication; Custom CNC Machining; Cylinder Head Development; Tech Talk 0.600 flow -42 more CFM for 23 deg SBC head 0.700 flow -40 more CFM for 23 deg SBC head. Valve angle on the seats is … Excludes all Nitrous, Supercharged and Turbo Charged Engines. Starting @ $6,700.00 Fully CNC’d runners and chambers designed and ported in the USA. Fiat / Lancia 2.0L 16 valve. ARP also makes a head stud kit that is compatible with our 15deg. 1 7/8 hooker SC headers(we replaced the conventional flanges). Jan 27, 2008 #5. Others may allow any head … For the 15 degree heads, we recommend SM2451-15DEG. SBC heads. The best of both—checkmate! Applying what is detailed in the next dozen pages on heads will allow you to generate more airflow and, consequently, more power. Flow measured at 28" of depression. If it’s a 383 stroker, you can probably go with 200cc intake runners. All American X CNC 23° Small Block Chevy Racing Heads. Inside The Chamber Trick Flow retained the stock 23-degree valve angle location, so the heads will work with standard SBC pistons. Step up slightly in price and there are a bunch of proven performers like Dart’s SHP 23-Degree head for $1,180, TFS’s Super 23 at $1,598 and AFR’s fully CNC-ported SBC Eliminators for $1,647. Alfa Romeo 1.7l 16 valve . The Brodix 18" is the most bad azz 18º head available for big inch small blocks. - Chad Speier/owner "Your 23º stuff is the best I've ever had across my flow bench or dyno. The head will accept all the normal 23-degree small block valvetrain pieces. The heads come with ductile iron valve seats, bronze alloy valve guides, and Viton seals. There are 4 different compression charts listed. Throw on a set of 18 degree heads, and that motor now has better intake runners than a 24 degree big block, plus big block sized valves. RFD 18 PA-NOS ... RFD 15 Degree BRODIX ; RFD 18 Degree BRODIX ; RFD LS-R ; Ford.