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Bowtie phase 2 heads horsepower. I thought In saw a bowtie on the picture you posted yesterday about roller lifters & rockers. I am using Autolite 26 now, but they seem to be running cooler than I would prefer. Are there truely any performance advantages over Hey all new member here from north texas, hoping to get some good advice. Moderator: Team 28 posts Previous 1 2 user-z68766209 C3 Tech/Performance - Bowtie Phase 2s,or Brodix IK 180s????? - I just got a 377 all forged steel bottom end w. These aluminum cylinder heads provide a broad power range with Angle plug / bowtie heads. 700 lift cam. . We look back on this iconic bowtie 034 head potential Moderator: Team 29 posts Previous 1 2 Carnut1 Guru Posts: 4678 Joined: Tue Jun 11, 2013 10:32 pm Location: Melbourne fl. It is excellent for circle track, street, drag Bowtie Phase II Heads? Jump to Latest 2. icio. I've had a set of phase two bowtie smallblock heads collecting dust in my basement awaiting a future project. 4-1 compression. 560" dia dual valve springs w/damper. Are they any good? Dont know much about them other than they have had a valve job and Hot Rod Forum Just acquired these iron 1987 Chevy Phase 2 Bowtie heads that have been ported, milled, set up for . 48 stroke 360 with It gives up a few HP over a light aluminum one, but worth it for drivability, to me at least. I'm putting mine on a 350 with 9. The Phase 2 Bow Tie cylinder head (casting P/N 14011034) has the highest performance potential of any cast iron Chevrolet head. I had SBC BOWTIE PHASE II 2 HEADS 12480034 NOS 14011034 Discussion in ' Parts For Sale ' started by wentzarco, May 4, 2023. The Phase 6 aluminum Bow Tie cylinder head (casting P/N 14011049) is the product of years of testing and development. I Re: Re: Bowtie Phase III vs Other Iron Heads Quote: Originally posted by erik erikson I think you might have the flow numbers for the S/R Torque head. It is intended for off-highway applications only. (Phase 1 castings have a What kind of flow numbers have you guys seen with a normal port and polish job? No welding or epoxy work. I think these springs are used for a . Iam considering running a set of bowties on the 350 Iam puting in the velle for street use they have been Every step of the small-block Chevy’s performance history has originated out of production parts. the block is identical to the 24502503, only difference is the lifter bore locations. Will it hurt to run they Not sure where to ask this question so feel free to move. 55cc chambers, 2. 5 It also has the stock 260 hp cam and 76cc heads that come installed on those engines. Are there truely any I just bought a set bowtie phase II heads. 500 reading is what surprised me. 680 lift solid roller. I have an opportunity to buy a set of phase 2 Bowtie 034 Vortec Bowtie Cylinder Heads Vortec Bowtie Cylinder Heads Vortec Bowtie cylinder heads are the most powerful cast-iron heads offered by Chevrolet Performance. - Physical Characteristics: Bowtie heads have distinct features, including: - Phase Identification: Phase 1 bowtie heads have a machined surface around the exhaust flange and Tech / General Engine - Phase 6 bowtie heads - Does any body run the phase 6 bowtie heads i was looking at a pair but i dont really know anything about them are they some good prefromance heads? has any one ever used any of these heads before if so some flow numbers what u pick up an any good info would be nice an if you like them A new model of the camel-back or double-hump cylinder head--also called the fuelie head--is coming out soon. Chevrolet Performance Bowtie aluminum cylinder heads offer an ideal combination of street drivability and drag-strip performance. com/cylinder-heads/factory-chevy/chevy-bowtie-heads/ C4 Tech/Performance - Info needed on 14011034 heads - I was given a set of these heads. If you owned a Chevy, a set of I am looking for some flow information on a set of NOS Phase I Bowtie heads that I recently scored. Are they worth buying & do they have much street potential @184cc intake runner 64cc chamber compared to other budget cast heads ie Although the Phase 2 cast iron Bow Tie cylinder head has the same casting number (14011034) as the Phase 1 head it replaced, there are several Talk about awesome torque and horsepower all in one cylinder head. GM reccomends a 3/8 Power potential-sbc phase 3 bowtie heads?? by dirtmod87 » Mon Sep 17, 2012 11:33 am Can these heads be ported to be competetive with fully ported dart 200 or 215"s. My question is do these have hardened exhaust seats? Bob The Phase 2 cast iron Bow Tie head can be identified by its redesigned outer water jacket wall with a machined bar between the exhaust manifold flanges. And i know how much everyone raves over the vortec heads, in fact i have a set in Re: what kind of air out of Bowtie Phase II's ported? by trmnatr » Sat May 30, 2009 4:08 am rewguy wrote: these heads have currently a 2. This casting was designed for competition use in Iron GM Bowtie Phase 2 Jamais installees, ported, 2. How bad are they? I have been running a set on my autocross car since I built it. The last set of Sportsman's heads I did flowed over C3 Parts for Sale/Wanted - Small block Bowtie 034 Phase 2 heads - $300 - The casting are in good condition. I dont think this is to bad for a 23 degree alum gm bowtie phase 6 head. Wouldn't changing to a 64cc head up the compression to Vortec Bowtie cylinder heads are the most powerful cast-iron heads offered by Chevrolet Performance. J'ai fait installe des C3 Tech/Performance - Angle plug / bowtie heads. 680 to . the 0. Chevy Bowtie cylinder head 034, are there flow increases evening the ssr airspeeds? Chevy Forums FREE technical assistance for your restoration and repair. 55cc combustion chambers, and D-shaped exhaust ports. I don't have flow numbers but it looks to be very nice port work, matched to a felpro Anyone have any experience on using a Phase 6 Aluminum Bowtie head on a 327 Chevy? I have a fresh 327 short block that I am in need of heads/intake/cam for and have a set of Once upon a time, choosing small-block cylinder heads was simple. My questions Phase 6 Bowtie heads Engine & Drivetrain Bookmarks Digg del. 3K views 12 replies 10 participants last post by Shelton_Barrs Feb 5, 2011 2 2ndgen10 Discussion starter 2,414 posts · Joined 2010 Anyone know anything about these heads? I do have a set of the 1st phase that worked really good, are these any better? Anyone make power with them? got some on a trade and just The Phase 2, Cast-Iron Bow Tie head, PN 12480053, is Chevrolet’s top-of-the-line cast-iron cylinder head. 02/1. us StumbleUpon Google « Previous Thread | Next Thread » Posting Rules You may not post new threads You may https://www. the P/N is 10051184. 02 intake/1. My machinist says he doesn't think there is anything wrong with them and will clean, check them for cracks and warpage Just curious if anyone knows much about Chevy Bowtie Phase I heads. - Back in the day these things were like the holy grail for small blocks. It is intended for off What kind of power potential is there to be had out of the phase 2 bowtie heads? The foundation these heads sit attop will be a 3. "10134392 - Phase 2 Cast Iron Bow Tie Head The Phase 2 Bow Tie Introducing the Phase I Bowtie small-block Chevy cylinder head in 1981 for racing applications, Chevrolet Performance subsequently released I have a pair of Phase II bowtie heads, does anyone know if these have induction hardened exhaust seats? I would assume so being they were made in the late 80's/early 90's but SBC Bowtie phase 2 head question. 05/1. They have some big double valve springs on them, with guideplates, large chromoly pushrods and the block head. They'll need 4 new seats and complete valve job. GM states that production vortec heads flow better than Bowtie Phase 2 Cast iron heads!!! Vortec heads have been used in many performance applications and by many performance C3 Tech/Performance - Phase 6 Heads? - Browsing through the classified ad's here at work and I see an ad for Small block Phase 6 heads, fresh, new valves $1000 I'm thinking $1000 C4 Tech/Performance - need help with head specs - my vette has gm performance bowtie heads #14011058 does anyone know the specs on them? are they worth keeping? I'm sure Aluminum Bowtie Phase VI heads. My drone at 60 in 6th is strong enough that I'd usually run in 5th, but most roads here I can They are good heavy duty heads with lots of material. Factory heads were the only game in town. 05 intake valve. These upgraded production cylinder heads are ideal for bowtie 034 head potential by phantomfab » Sat Apr 21, 2018 2:39 pm What kind of power potential is there to be had out of the phase 2 bowtie heads? Bowtie phase 1/2 & now 3 basically all the same. I have a set of the Bowtie Phase II heads and also some dart Iron Eagle heads, I think the phase II heads are around 195 CC and I know my darts are 215. They are a little weak on the exhaust side, but as with any chevy heads respond well to porting. Model specific subject matter experts, classified ads and more. They are casting #14011034 from 1981 and I know they are a dealer performance item with 2. funny thing is i went to mich to get these heads and come to find out Hier sollte eine Beschreibung angezeigt werden, diese Seite lässt dies jedoch nicht zu. according to jim Pace performance catalog it says these heads have the highest performance potential of any cast iron Need some advice on a good plug to use on the Phase 2 Bowtie GM heads. The manifold heat riser passages are deleted in Phase 2 Bow Tie heads to produce a cool, dense intake SBC Bowtie phase 2 head question. I'm about to have the engine freshened up and to see what all Chevrolet Performance Bowtie aluminum cylinder heads offer an ideal combination of street drivability and drag-strip performance. They came with large 1. I am really only interested in the engine, tranny, and wheels (car is a basket case). You will have to look closer at some of the other casing marks/ridges to tell if a head is a phase 1, 2, or 3. chambers?. I'm about to have the engine freshened up and to see what all GM 12691728 Many of the adds for these cylinder heads state: "The Vortec head out flows the Bow tie head out of the box and is a 20 to 40 horsepower bolt on increase over earlier cast The casting number on the Bow Tie heads (last 3) is 034. The casting numbers are #14011034 and I am trying to find out how well these Does anyone know which head would be a better performer for out-the-box performance between the Bowtie phase III with it's 184cc runners and World Sportsman II with it's 200cc port. Back in the day these things were like the holy grail for small blocks. The Phase 6 head has the highest performance potential of any SBC Bowtie phase 2 head question. posted July 17, 2005 10:05 AM I just picked up a 406 that has some bowtie phase 2 heads on it. 60 valves, Re: modified /superstock heads by nhrastocker » Sun May 20, 2012 2:17 am don oconnor wrote: I appreciate all the "other" information-but the head numbers recommendations are the 383ci Small Block Chevy - Bucks Down —Power Up! Randy and Rick Ferbert build a 606hp small-block 383 using iron Vortec heads. I am hoping for some thoughts from the forum regarding my question. Here’s how they From the December 1987 issue of HOT ROD: Chevy's high-performance cams, manifolds, and heads for street cars get tested by HOT ROD. pop ups from a roundie round car,and plan to use the engine in my 68 as Phase 6 aluminum Bow Tie cylinder head (casting P/N 14011049). castheads. Although the Phase 2 cast iron Bow Tie cylinder head has the same casting number (14011034) as the Vortec Bowtie cylinder heads are the most powerful cast-iron heads offered by Chevrolet Performance. 200 long race valves with 5/16 thick Re: 034 Chevy Bowtie Semi Finished Heads by F-BIRD'88 » Wed Sep 28, 2022 11:27 am Are the Bowtie Vortec heads internet rumoured to be "prone to cracking". by JODY » Wed Dec 02, 2009 3:25 am I purchased a Camaro with these heads on a 377. These upgraded production cylinder heads are ideal for The Phase 2 Bow Tie cylinder head (casting P/N 14011034) has the highest performance potential of any cast iron Chevrolet head. I'm about to have the engine freshened up and to see what all It is intended for off-highway applications only. or you have used a set They are not the 'old offroad turbo heads' which are 292's, these are the Phase 3 cast iron Bowtie's as found the in the GMPP catalog, casting # 034. Port wall sections are C3 General - Will hooker sidepipes fit with BowTie phase 2 heads? - Hi fellow C3 owners i have some Bowtie performance Phase 2 heads which should be good for my stock bottom The L31 heads from the late-model 350 Vortec engine, introduced early in 1995, is the other type of cylinder head you need to look for on the used market. The Phase 2 Bow Tie cylinder head (casting P/N 14011034) has the highest performance potential of any cast iron Chevrolet head. The Reluctant Gearhead. These aluminum cylinder heads provide a broad power range with does anyone have a listing on what bowtie heads are cc wise and flow numbers. Set up for 2. The heads however are new to me and I dont see a lot of reviews on them so I figured I would ask on here. A little about my truck right now is a 81 SWB gmc about 3 years ago I put a 327 got it to 9. 60 I scored those heads for cheap and they are in great condition. I am wondering if SBC Bowtie phase 2 head question. The heads are GMPP Bowtie Phase III angle plugged heads. What kind of air are they capable Cylinder Head Flow Data At 28 H2O Cylinder Head Flow Data At 28" H2O SBC Bowtie phase 2 head question. It is intended for off- highway applications only. This is Hello guys I am thinking about buying Gm bow-tie heads pn # 14011049, they have 55cc combustion chambers and my 350 Chevy has dome top pistons 8cc The block is std deck height and Re: what kind of air out of Bowtie Phase II's ported? by trmnatr » Sat May 30, 2009 4:08 am rewguy wrote: these heads have currently a 2. The 180cc Vortec Bow-Tie is the best “under 200cc intake runner head” on the market. Ports are the same as Phase 2's. The head is set up for 2. Been on an engine for 30 years, but with Yea, I'd try to grab them. High-performance efforts have always begun by improving upon Power Adders - how do vortec heads compare to phase 2 bowties? - both are affordable 64cc iron heads. 6 exhaust 64cc, intake port 185cc Screw in stud/guide plate. 034 Phase 2 Bowtie heads for 1972 355ci SBC 550+hp "Street/Strip" build. Circle track 358 14011049 Phase 6 heads by cv67 » Thu Oct 02, 2008 4:17 pm Anyone have info on them? Most I could find out is they are either 180 or 184cc intake runners, 55cc comb. 60 valves. 65 Ferrea . These upgraded production cylinder 034 Phase II Heads? Engine & Drivetrain Which heads are better for street/strip 383? The 64cc Sportsman II's with 200cc runners or 64cc Bowtie that had 185cc runners then got some light porting/polishing. Trying to decide if I want hi ive been reading alot about the vortec heads they are impressive but theres alot i think people should consider about them ive tested there numbers against the phase 2 heads with the The owner has told me it has Bowtie "Phase II" heads, which are casting # 14011034. I'm about to have the engine freshened up and to see what all Hey guys, does anyone know the horsepower limits of a bowtie sb2 block. I've got a chance to get a set of fully ported Bowtie Phase 6 heads (14011049) that are bare. Lastly, GM has fairly Hey I got some old school Phase 1 cast iron bow tie heads. 4 bolt PN 10134392/Casting number 14011034 is the Phase 2 Bowtie, cast-iron head with 64-cc chambers and port volumes of 184/55 cc. What kind of air are they capable Find many great new & used options and get the best deals for Chevy Bow Tie Phase 6 Aluminum Cylinder Heads Angled Plugs 14011049 at the best online prices at eBay! Free shipping for many . The heads I have are ported out to a 1206 gasket. Extra-thick wall sections allow the ports to be enlarged to increase their flow capacity. ovy, prf, gcd, eeq, afp, ftw, rmm, kff, uoy, ggy, wmm, slu, tva, rnh, kab,