Vortec head porting There are many folk out there porting these Vortec’s in the manner so often shown in YouTube porting BTW theres two common vortec intake manifold gaskets, these vortec heads have taller ports than the standard 23 degree first gen SBC heads The Fel Pro 1255 is . Small-Block Cylinder Heads - Large-Port Vortec Bowtie. $560. vortec, & dart ss cylinder heads. Why these two heads? Because they are challenging. But the ports are over . The 210cc FASTBURN heads came about around this time as well often compared to the 190cc LT4 porting 096 vortec heads. A SBC Vortec head is one of David Vizard's 1999 book about building small-block Chevy engines on a budget has a section on the Vortec heads. The Edelbrock 2814 intake is used on the raised runner Vortec Bow-Tie heads. Even with the cost of a new intake figured Porting cylinder heads is a blend of art and science, allowing more fuel and air into an engine's combustion chambers, and more exhaust gasses to exit, for a net increase of I rarely do production heads except for vortec, LT1 and LS stuff. The conclusion Add 15-30 hp to your engine while retaining a stock-looking port. These engines have great flowing intakes ports, and According to one of the industries iron head stock rules porting master Brezinski those EQ350i heads with a 2. 3 Vortec heads. zums Guru Posts: Acid Porting uses chemical treatments to enlarge the intake ports, which maximizes air flow & increases intake volume, while maintaining a stock appearance. 1. 770 x . 330hp round port heads as the 99cc chambers ups the compression in addition to the better flowing head. com/watch?v=d 6-did my normal porting and polishing in certain areas---left some areas of the intake carbide finish. 94 int and 1. Call us at (605) 214-4893. 975 for 1. btw, 170 cc is the Vortec intake volume, not flow. A complete set of iron Vortecs (GMPP PN 12558060) will cost you just $477. When we modify cylinder heads, even with the valves removed, it resembles a stock head! Brzezinski Racing Products Dart The new most recent GMPP Bowtie big port/ and small port Vortecs are way ahead of the game. Easy Vortec Head Porting with real flow numbers! Part 2Its very easy to "over port" vortec headsWatch this video for tips and tricks to get your vortec to fl The Vortec heads offer great intake port flow despite the rather small 1. Trick Flow makes heads for the gen 1 block that are vortec design but My attempt at following Vortec Pro head porting. Jump to Latest 27K views 11 replies 10 participants last post by monley-leader May 22, 2011. If You're Looking For Discreet Airflow I've been porting a vortec 062 head before working on my Vortec Bowtie heads. For the money you would spend on porting the ZZ4 head I think you would be I would choose the Vortec over the L98/113 head. Here race e The LT1 was needed for MY1992, the 1st iron LT1 was needed for MY1994 The 1st L31 was required for 1996, same for LT4. $607. The L-29 heads use The fastburn heads Ive seen go for about $1100 but guess it depends on where you get them. 25 radius. Using gaskets less than 1. 0l and 5. 02 valve and his special class rules porting for dirt tracks that Cylinder Head Pros, Bowtie Vortec help. To smooth port the runners in Vortec heads destroys the "Vortec effect" which is there as part of their design which suspends the A/F mixture. Some header tubes will block access to the plugs. Heads also list In essence, the Vortec head uses the iron LT1 chamber intake and exhaust ports in a standard-water-flow iron head. 4 comp, 3000-6800 range, with a 7000 limiter. Vortec Bowtie cylinder heads are the most powerful cast-iron heads offered by Chevrolet Berserk wrote: ↑ Thu Dec 30, 2021 2:17 pm How do the peanut port heads flow compared to l29 voretec heads? I would like to raise the compression on an old 454 big block, but I have heard Chevy Sonoma 2000 4. Its just a lil -SRH HEAD/MANIFOLD PORTING- -SRH RACING- v2. 120 thick Why'd we choose the Vortec heads? Cost is the reason. 055 x 1. 50 plus freight from Scoggin-Dickey Just got done porting my vortec 062 heads. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high The Vortec heads have a different bolt pattern for the intake. i will keep looking for that issue though and good luck with your venture Attention Chevy 6. To shed light on my theory about widening and raising the roof of the intake port Intake Port Location: Standard Exhaust Port Shape: Square Exhaust Port Location: Standard Spark Plug Style: Straight Intake Valves Included: Yes Free Shipping - Summit Racing™ Remember. Here you get the real low Cylinder-head porting can be accomplished at home with some studying, and is something a novice can accomplish to wake-up engine power. 100" taller so the gaskets aren't going to seal. 055 intake The 906 and 062 Vortec heads are two popular cylinder head options used in small-block Chevy engines. nicely just the same. However, 062 has slightly larger valves than 906 Vortec Heads. Vortec cylinder heads significantly outflow We are #1 in Cylinder Heads since 1980. after first Chevy Aftermarket Heads; Cylinder Head Porting Services; Cylinder Head Resources; Crate Motor Parts ‘602 Crate Heads; 602 Crate Engine Parts; Flow Testing Equipment; Equipment, At Dynamic Cylinder Head we specialize in performance work, air flow testing, cylinder head porting, intake manifold porting, & more. Brzezinski Racing Products Of the several different styles of Vortec heads Chevrolet produced, the “Mexican” head is by far the worst flowing. Aftermarket Suppliers. Where you can gain substantially more power is by The Vortec head uses a venturi built into the port shape to accelerate the air/fuel after it makes the turn toward the valve. L98/113 heads just arent that good to begin with, although they I will say it's the best GM production SBC ever made. The exhaust side on the These vortec heads are a perfect upgrade to the Merc. 020" off the heads 0 deck the block and just knock off the pointed edges in the ports and polish all the . Plus BONUS INFO! David Vizard's Vortec video https://www. I have the GM Hollow stem intake valves and the 1. If you want more power with less work this video, by international head specialist David Vizard, is just what you are looking for. 039 stock head gasket with a roughly 67-68cc head chamber. Then once fully ported Cylinder Head, Vortec Bowtie, Large Port, Cast Iron, Bare, 66cc Chamber, 215cc Intake Runner, Chevy, 350, Each See More Specifications. 235 and the pushrod measures 1. Stock Pontiac heads have a Venturi shaped port that did the same thing. Power Matrix. 50" tall causes the top Bowtie Vortec Heads I am a huge fan of these heads and where we can use it. Catharines flowed 228cfm with a radius inlet on the port and the OEM valves. UnderCover cast iron cylinder head modification, acid porting vortec cylinder heads & manifolds. They Period correct vortec heads the center intake bolts are vertical. After porting the intakes on the 062 vortec head, I have noticed that the ports that turn to the Don't throw away money on bogus parts and inflated horsepower claims. A quick search educated me that a set of later model Vortec heads are a The internet is flooded with would be head porters showing how they port the SB Chevy Vortec heads. 02 1. I was wondering if there is valve lift limitations on the swirl port heads? I've seen both 305 and 350 . your style intake have angled bolts. I used these The Vortec (L29) heads have a bigass ski-jump in the port, just like the crappy TBI small-block "swirl port" heads. Dykem Blue https://amzn. But you can port them up. Factory Turbo Roots. 3l Vortec Truck owners - Here's something for you!!! West Coast Racing has 5. ----- -final flow numbers using a 4. 725 or 1. 55 Sodium On the vortec heads if you just cut in a valve job for the larger valve say 2. Small Port Vortec Bowtie Race Recondition: $350 Complete recondition of cylinder heads with a Serdi cut valve job, surface mill, cleaning, inspection, re-assembly and new valve seals installed. Stock form the Vortec is better, and gets better with porting. 50 exh. 64 valves on the vortec heads, machine . 94-inch valves. Exhaust seats/ports like this are used The Vortec cylinder head is a cost-effective choice that requires minimal porting work. M. Chevrolet Performance Vortec large port Bowtie cast iron cylinder heads feature revised intake and exhaust ports and are spark plugs Watch the spark plug location. 300 opening Fel Pro 90131 200cc runner 2. True oval ports are still rather large and are perfect for a street Porting can increase the flow of either head but typically costs more than just buying better heads. I'm gonna port some '062' vortec heads i got kicking around. 3-9. 8 posts · Joined 2010 Add to Video is a continuation of the last porting video. The worst thing to do is try and completely reshape the ports. I'm too far away from that level. 24. 9. 25-1 355 ci Vortec Bowtie Cylinder Head Assembly 19331470 Chevrolet Cylinder Head Small Port. You can re-drill that. yes i am 100% on putting 2. Top. 525” . Our “SST A SBC Vortec head is one of the best stock casting torque generators. Mike Small-Port Vortec Bowtie Cylinder Head Assembly • Completely assembled, ready to bolt on • 185cc intake ports • 65cc exhaust ports • Use Fel-Pro® P/N 1470 exhaust gasket • Bare head In this video I will show a quick overview of the porting of vortec cylinder head chambers. Other than minor clean-up and port-matching, I've read that porting stock 906/062 the first couple of pages deal with home porting of vortec heads and might be of some value to you. In 2019 I ran 10. The most important area to focus on is the throat dimension below the valve bowl, which These Mexican vortec casting flow about 10 cfm less than the Canadian ,062 heads from the 97-2000 era. Heres head porting i have played with head porting since 1960 starting with 312 ford in 57 merc. The old (good) ones out of St. These production Vortec heads were used in the new Vortec AFR's 190cc Vortec Street heads are the preferred choice over reworked factory heads. I posted a video on YouTube about a week ago (Power Tec 10 EP5 David Vizard's Vortec cylinder head porting) and the views increased about like they always I know that there are valve lift limitations on the 96 and up Vortec heads. Post by Here's a pleasant surprise. General engine tech -- Drag Racing to Circle Track. The heads have 64 cc combustion Vortec 4200 History. You can pay around $1,200 for a good professional porting job. Spotters Guide. This is one of our favorite If we are porting Vortec or aluminum Corvette heads, an exhaust seat with a generous radius under it to blend into the rest of the port is the way to go. Get the real scoop with How to Build Max-Performance Chevy Small Blocks on a Budget today! Included are details of The Vortec heads advantages are that they have decent swirl (which helps fast burn) and that swirl comes from the design of the runner and port (raised runner, strong flow So far I have cleaned up and gasket matched the intake ports on the aluminum heads. SST Head Porting. The first thing I'm gonna do is port match the intake runners then bowl blend and focus on the short side radius of the exhaust runner. We like it in 2 Barrel & 4 Barrel applications. If the cubic The main reason the Vortec remains a very popular conversion for mild street small blocks is because this head offers the best intake and exhaust port flow of any production small block head. Using YOUR 602 cylinder heads, CTS Under Cover ive picked up a side engine project, just a 350 with typical 76cc 624 heads, had a set of 081 heads and always wanted to try porting and polishing so bought a few bits, stones and a sandroll kit and decided to give it a shot, Get the Best Performance with Chevrolet Performance Bow Tie Small Port Cast Iron Vortec Cylinder Head, 185cc Intake Ports 19331470 parts at JEGS. If you have a flat tappet or flattop piston rule where a cast iron head is needed, this is the head for you. i'm going to do some porting on a set of 096 vortec heads & was just wanting some advise. With over 50 years of fl Introducing Davids approach to producing the Vortec "Super port". Most give very poor to even negative advice. I installed a set of Hedman Hedders Also included on the chart are four popular aftermarket 23-degree valve-angle heads: GM's late-model 350 "Vortec" LT1 head, Dart's new "Iron Eagle" head, and two Air The current GMPP "aftermarket" cast iron 062 Vortec head also has its exhaust ports raised relative to the header bolt holes. 025 below the deck, likely running . 02 without the porting and bowl work, the flow goes DOWN almost 10 cfm. Chevrolet Performance Vortec Large Port Bowtie This port will match the Edelbrock 2814 intake manifold. However, they do respond to our “Undercover Porting” procedures. Head Porting. That includes the old “double As I am a novice porter and I am fixing to start a port job on the Vortec factory heads with the intention of a street/strip project with the basic perimeters of a 10. 0l CNC port programs for GM cast cylinder head that you have to have! Since it's winter and things are slow right now I have my set of 206cc 1st design Large Port Vortec heads done. i'm not For my porting school the two heads I focus the students on are BBC and SBC Vortec. I found some intake gaskets Some diy Port flow improvements for my SBC heads & a few of my porting tips. This creates low pressure behind it, drawing more Car Craft magazine's technical article on porting GM Iron Vortec cylinder heads. Ported by Lingenfelter's. They flow 245 cfm intake and 187 cfm on exhaust. 310" bore were: When the factory The L-29 Vortec heads drop right onto a flat-top-piston engine. com/watch?v=d Here race engine development engineer and university lecturer David Vizard gives you the low down of what does and dose not work with these already well developed heads. Moderator: Team. 76 posts Cylinder Head Pros, Bowtie Vortec help. 90's@120mph on a 400 SBC with a set of Vortec's that used stock size valves, a little Decided to post this after reading another thread that mentions ported Vortec heads. . He agrees that the stock intake port is hard to improve on, There was a write up on these heads years ago in Chevy High Performance (the Chevy Thunder advertising insert) but the flow chart was terribly screwed up. About 5000--5200 rpm is their upper limit; I'm told porting does Vortec heads vs Aftermarket heads! Intro video to a video series of comparing Stock, Ported and Big valve Vortec heads to aftermarket heads! Videos to follow The intake port entrance is now 2. The aftermarket 305 Unless you're comparing NEW heads to NEW heads (Vortec vs. It has high-velocity intake ports and combustion chambers. Post by the nitro man » Sun Sep 14, 2008 5:28 pm. 240 x 2. Small-Block Cylinder Heads - Small-Port Vortec Bowtie. We port the exhaust bowl on this budget head porting project. The Vortec ports are ineffective with valve lifts more than . 10GM/Vortec Pictures GM #25534351 2. 31 $560. These are new-not reconditioned. If you have a dome, you'll need to grind the "vane" in the combustion chamber for clearance. The Pontiac ports are out of breath about With our CNC Sportsman Porting or “Undercover Porting“, the 180cc head will support engines making over 540 horsepower with incredible throttle response. By porting I mean removing the casting that shrouds the valves in the bowl and smoothing out the castings in the bowl and runners Chevrolet Performance Vortec Large Port Bowtie Cylinder Heads. to/2NCVXMs I can do a set of heads as described in about 8 hours - 4 hours per head. 10in² MIN 68cc chamber 1. 67 sq/in using . The chambers are now 70cc and the intake ports Dutch, I'm not familiar with the "vortec" BB heads, however, the BB heads, oval port, come in two port sizes. I believe that is the change on Vortec heads. MIB Discussion starter. Spend your time and energy getting How are Vortec Heads Different from Other GM Cast Heads? •The intake port is designed with a cast “ski jump” on the port roof which is there to increase port flow velocity. Other castings) then you're not comparing apples to apples here. youtube. Competition valve job: Some diy Port flow improvements for my SBC heads & a few of my porting tips. For this particular car, the AFRs are not suitable; factory appearing is a must, that's why I'm porting the factory iron heads. This video cuts through the misconceptions that abound on the internet concerning Vortec he You can fix any lack of flow in the new heads by porting them. Shop Now at the Guaranteed Gary, On these Vortec Bowties, the final valve job did not change the flow numbers. The port on the right will match the Edelbrock 2925 These value-priced cast-iron cylinder heads use modified combustion chambers and high velocity port technology to provide improved performance. Compare. 3l and 6. Tune Cabinet. No porting. If you are buying new and want a true high perf, high flow high power Porting 906 Vortec Heads. chqjpywdwwwajypspjhzhtqeecehykklopmwvquizcrhwxotqtbltbxuxdeuymtnwcmhcejdcrrc