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Sportsman ii heads vs vortec heads. Mar 12, 2022 · My SBC pump gas 358 ran 11.

  • Sportsman ii heads vs vortec heads. 300-inch lift. Features include high-flow 200cc RightCast intake runners, Fast-Burn combustion chambers, and Jul 20, 2015 · The 383 small block really likes a 195cc head on the street and so the FastBurn fits right in. Since iron heads are more difficult to modify I'd assume there is a list of heads which already have a good design and are known good candidates. Are the they referring to the smog heads on my '80? How do Vortec heads compare to the double hump 186's or the 041's (with 194 intake) that I have now. 5 is as high as youd want to go using iron heads, even with premium. However, 062 has slightly larger valves than 906 Vortec Heads. Oct 25, 2005 · Here’s how this works using the GM Performance Parts Vortec iron cylinder head. of course, everything underhood was painted up to Mar 29, 2004 · Anyway I'm wanting to dump the truck heads as they've got 70cc chambers and small valves. 468 112/108 Hyd/Hyd 1000-5500 or lunati voodoo cam 60102LK 262/268 219/227 . Either way it will still be fun to drive. the GM truck Vortecs at 170cc and they flowed the Find World Products Motown 220 Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! Designed to provide even greater increases than World Products' own Sportsman II heads, the Motown 220 cylinder heads rate as the ultimate small Chevy cast iron heads. Buy a set of used Vortec Heads at the local junkyard ($210), Vortec intake manifold ($140), center bolt valve covers ($40), balancer & Gasket set ($100). Feb 23, 2022 · Finding a good set of used Vortec's is getting tough now. 094 x 0. May 9, 2005 · The intake face of a Vortec head is cut at a slightly different angle than the First-Generation SBC heads and features an eight-bolt-hole intake manifold hold down as opposed to the standard 12 Jan 14, 2008 · I also have the same treatment on my fastburn heads. This style of head is known for its great airflow and high compression ratios. 660 in. 94 inches times pi = 6. All we did was swap the heads, which took less than an hour. But once you pay nearly $200 for the intake, then get a set of self aligning rockers, plus a set of valvesprings that can handle the lift of the cam you're going to use, and screw in studs, other aftermarket heads are looking to cost about the same or Sep 18, 2009 · Not all 96 models got the 350 Vortec engine. especially the Dart "Platinum" series!! Don't get me wrong, the older Sportsman heads aren't junk by any means. 5:1 cr. That adds to the cost of the conversion if you already have a small block Chevy performance intake manifold since a traditional small block intake will not fit the Vortec heads for a number of reasons. The valve size and chamber size were the same on both sets. 062 Vortec Heads: A Head-To-Head Re: Camel Hump Vs Sportsman II Heads 10-12-05 04:53 AM - Post# 795891 In response to slimlynn1 BEFORE you purchase USED cylinder heads have a good machine shop look them over,CAREFULLY, unfortunately its a fact that a small percentage of guys are crooks who unload cracked heads on unsuspecting guys, if they check out HAVE the shop put a valve job and new valve seals AND CLEAN UP THE HEADS Sep 6, 2021 · These heads do demand their own unique Vortec style intake manifold bolt pattern. 454 /. I have 3 sets of good non-cracked ones left. Dec 29, 2022 · Re: Sportsman II's vs Vortec heads Post by juuhanaa » Sat Dec 31, 2022 7:09 am Bigrod662 wrote: ↑ Sat Dec 31, 2022 5:33 am I have a set of large runner bowtie heads angle milled to 55cc with no port work on 355 and solid flat tappet cam and make 598 hp and 543 tq. In this particular situation, the Sportsman II heads run well with the stock L-48 cam and really punch up the midrange, but the heads can't give the engine more rpm than the cam was designed for. The Vortec head uses a 1. 041/186 heads - The advertisements for Vortec heads cite a 30hp increae over stock heads. smaller runner with higher flowing number just means that the air has a higher velocity entering the cylinder creating more power. Dart iron eagles are also a very good head. Both have their pros and cons, and the final decision comes down to what’s most important to you. Oct 6, 2006 · The Dart version of the Vortec head -- I recall one of the magazines doing a Vortec airflow test some time back, and Dart actually did not want their heads used because they said these are not considered to be an actual 'performance' head. Mar 7, 2009 · Here, for instance is the flow, intake and exhaust, of the L31 Vortec GM head, part number 12558060, casting number 12558062. To pick a great street head choose the one that has the smallest port that out flows the prospective choices in the . Plus there aluminum and stay cooler not to mention lighter. cast numbers ending in 461 or 462 I believe are the ones to look for. It’s also very efficient at transferring heat away from the Mar 31, 2010 · In this particular situation, the Sportsman II heads run well with the stock L-48 cam and really punch up the midrange, but the heads can't give the engine more rpm than the cam was designed for. 8:1 street /strip engines; all the way to 940HP blown alcohol drag race engines. World Products also offers a relatively new 220cc Motown iron head that appears to be a decent flowing head with good power potential. Dec 10, 1999 · Just stock. We multiplied 1. Jul 6, 2006 · 12552520 & 12558059 are '97-up Vortec 305 heads. Maskin went on to design what could be the ultimate iron head—the Iron Eagle. 300 = 1. Finish: Vortec 4. May 25, 2016 · Designed to fit 1955 and newer engines, this Vortech head (PN 12558060) is a great mild-performance cylinder head. the center bolt valve covers didn't even throw too many people off. The Dart heads had extra material added into the bowl area to allow for seat inserts to be installed for stationary applications etc. If they are the camel hump heads you allready have an excellent set of heads. They just have much more wall thickness everywhere for porting, much like the original Dart Sportsman II's that were brought into the marketplace originally as a direct competitor to the Iron Bowtie. My old combo was 406 summit flat tappet cam with . Sep 30, 2014 · In my opinion, the Dart heads are a huge step above the older World Sportsman heads. 80-sq. 08/1. Nov 7, 2010 · All SBC gen I and Gen II heads will bolt onto the block. Nov 3, 2006 · The 882 head is a 151 cc intake runner, so basically they are comparing a World products head to a small port smog head from the 70s. Mitchell then sold his interests in World Products, and the Sportsman II spawned the Motown iron head. This is the first aluminum head in this small-port aftermarket category. Total $450. Dec 31, 2022 · Re: Sportsman II's vs Vortec heads Post by Bigchief632 » Tue Jan 10, 2023 4:18 am BOOT wrote: ↑ Sun Jan 08, 2023 10:21 pm Sportsman II's have changed over the years. Feb 10, 2010 · I have a 79 Vette. I added the port flow for the E-Tech heads to my first post. Like other heads, the 220 utilizes cast intake valve seats and hardened steel exhaust seats. With some machine work these heads with there 64cc chambers are real power makers. Squish and quench requires the proper piston, head gasket and/or block deck height. 100 70 48 0. Features include high-flow 200cc RightCast intake runners, Fast-Burn combustion chambers, and your choice of angled or straight Jun 26, 2007 · you are probably the only person that would notice the "wrong" heads and intake on the motor. Ports matched the gaskets so close I decided not to touch them. Here is the combo 355 World Products Sportsman II heads lunati voodoo cam 60101LK 256/262 213/219 . I'm considering the heads that Scoggin Jul 1, 2001 · In comparison, the stock valve on World's Sportsman II heads is the already big 2. i don't know how many people asked me if the motor in my 71 Nova was stock- i had the vortec heads and the matching Performer intake. The Vortec heads are a little bit lighter than the older heads and have a “kidney” or “heart” shaped combustion chamber that is more efficient than the double hump chamber. Find CHEVROLET Chevy small block Gen I World Products Sportsman II Heads and get Free Shipping on Orders Over $109 at Summit Racing! Originally introduced in 1987, the latest versions of these Sportsman II heads from World Products continue to be the industry's most popular cast iron cylinder heads. Vortec heads flow the best of the bunch but with the small combustion chambers the compression ratio would be way to high. The cam mentioned earlier in the thread will develop a lot of cylinder pressure, I think 9. 8 LS Build: Horsepower Recipes, Specs, & Upgrades. Yes, the Vortecs are cheap at $500 or so a set. Apr 30, 2004 · 955-011250-2 64cc, Straight Plug-Complete (Each) Applications: World has tested Sportsman-II heads in many applications including 375Hp 9:1 street engines; 450HP 9. Jan 10, 2017 · This is why a Sportsman II head is popular as it flows as well as a Vortec head at lower lift values, has more valve lift available to it, uses old style intakes, and it also uses old style valve covers (Vortec heads use center bolt valve covers which disturbs some people). Let’s start with the double hump head. Note Aug 15, 2006 · 2. Easily capable of 400+ hp and torque. I had to clean them as delivered, lot of casting grit left in the heads. This figure times the valve lift equals a flow window area (6. 60-inch stainless steel valves, the head offers 215-cc intake port volume. The only drawback to these heads is that they suffer from a little more valve shrouding (see Fig 6-1) than is necessary, and sometimes chamber cracking (details on cracking later in his chapter). With an xe268 or xe274. I don't have a lot of hood clearance, so I was going to use my existing Performer intake (not rpm) but the intake gasket for the Sportsman intake is a 1205 and I think the Performer uses a 1204. made for 305 HO motor, 64cc, 2. 480HP potential naturally-aspirated. Jan 28, 2014 · unfortunatly you will get a lot of different opinions on procomps alot of guys use the castings and stay away from the the valvetrain componets,i think vortec heads are awsome because of there low lift flow cappacity 420 hp is easy 383 and vortecs- 520'' lift cam. minimum port cross-section. 501 lift, vortec iron heads bowl blended, polished chinese air gap intake. 0. Features include high-flow 200cc RightCast intake runners, Fast-Burn combustion chambers, and Edelbrock Performer. They are beefy for porting, but they flow almost identically below . Dec 21, 2022 · The Vortec chambers are much better than the sportsman II's. 44 posts Previous; 1; 2; 3; Next; BOOT Guru Posts: 2979 Oct 23, 2005 · C3 Tech/Performance - World Products Sportsman II Heads - Does anyone use these heads if so are they good or bad. The LT1 and 4 heads are set up for reverse coolant flow(i. e. Fully race-ported flowing 275 cfm @ 28" water with 2. Find World Products Sportsman II Heads and get Free Shipping on Orders Over $109 at Summit Racing! Originally introduced in 1987, the latest versions of these Sportsman II heads from World Products continue to be the industry's most popular cast iron cylinder heads. I purchased a set of the 185cc vortec Bowtie heads, but due to health issues they have been sitting in my closet for the the past two years. the pictures are in order: GM Small Port Bowtie Vortec, ProMaxx Performance Vortec, GM Vortec, Summit Vortec Feb 14, 2002 · I think youd have to retard the timing too much to run 87. 60 valves, potential is approx. I don't know what the combustion chamber looks like or how big it is, but I suspect they're smaller, since the 350 Vortec heads have chambers that are right at 4" wide, and would leave a serious ledge on a 305. 94- and 1. Sep 9, 2007 · World Sportsman II heads vs. They come fully assembled, and feature 1. Moderator: Team. 300 190 129 0. Now I do have a roller cam in it, not too big but the flat tappet cam went about as good. 15 hours ago · Find World Products Sportsman II Heads 0. 00" intake valve and 1. 400 227 140 0. If it's a 49 state, early production could be full up OBD II Vortec or OBD I TBI on Swirl Ports with a roller Vortec block, or Apr 13, 2015 · Types of GM Vortec Heads. 420" lift stock, and I don't have the money to have them machined to accept higher lifts. Edelbrock’s intake-port philosophy emphasizes port velocity for its mild street heads, and the Performer is the entry-level head in this category with a 170-cc intake port with a rather small 1. . With generous 2. According to World, the head uses a Vortec-style “quick burn” combustion chamber design. They were the first to offer an economical aftermarket cylinder head and they definitely left their mark. The Dart Vortec intake runners are around 160cc iirc vs. General engine tech -- Drag Racing to Circle Track. 468 /. There is nothing wrong with the Sportsman II's on a 350 IMO. The center bolt non-vortec heads(87-96) use a slightly different intake manifold. Jun 14, 2022 · There are a lot of factors to consider when making the decision between a double hump head and a vortec head. in. 6 valves) on Ebay from a company in Houston, TX for 365 bucks +shipping. Not wise in my opinion. I did not run Vortec's on this engine because I run the roller cam and the Vortec's would require a ton more work to use that setup. The exeption is that the LT1 has reverse water flow as well so LT1 heads would have to be re-worked seriouly to get them to work properly on a standard SBC. 02 double humps on a 406 sbc in my boat. 02/1. I've had very good results on street driven 350's with vortec heads. Re: Sportsman II's vs Vortecs 10-01-03 02:46 AM - Post# 304647 In response to StrokedBlazer As per Car Craft, November 2003, page 31 in the Battle of the Titans article: ". Dec 18, 2015 · Don't waste time with the Dart S/R vortec heads either. The Vortec is just a better head IMO, it's too bad the new ones from GM have such a puny port now. With my old combo my 69 camaro would spin the tires from a 30mph roll. The Vortex head outflows stock non-Vortec heads, and according to Chevrolet, deliver a 20 to 40 horsepower increase over Mar 5, 1999 · Stock out-of-the-box Vortec heads have approx. When we go to Sep 10, 2007 · SB Chevrolet Complete Small Port Vortec Bow-Tie Cylinder Head GM Performance Parts’ latest and most powerful iron cylinder head for Street or Racing. 094 inches of circumference. May 22, 2021 · Spark plug location on a 2-valve engine is difficult to optimize. the water goes from the heads then through the block) so those aren't what you want to use. 94-inch intake valve to flow 190 cfm at 0. Along with the 235-cc Motown head, World also released a Vortec-style aluminum head, yet the intake bolt pattern remains the same as the original small-block. The vortec intake and cam are made to produce more low end torque as previously mentioned before If the budget means early-style heads (as opposed to the later Vortec heads) then closed chamber heads are definitely the ones to look for. Mitchell and World Products eventually parted ways with Maskin, and the Dart II evolved into the Sportsman II. I'm not a big fan of World heads. The RH head also has a huge crack below the exhaust ports, but thankfully it barely weeps any coolant at all! I love the results I've read about the vortec heads and am willing to put up with all the changes required to run them. There are reports of some shops getting close to 300 cfm out of these heads in fully-ported form. ) and get Free Shipping on Orders Over $109 at Summit Racing! Originally introduced in 1987, the latest versions of these Sportsman II heads from World Products continue to be the industry's most popular cast iron cylinder heads. 580 HP. 400 lift range. Dec 18, 2006 · if it were me i would stick with the vortec heads just because the flow numbers between the two are very close, but the vortec heads are doing it with 30cc smaller intake runners than the sportsman 2 heads. 50 valves. Maximum Valve Lift (in. While 906 and 062 Vortec Heads share some similarities, there are also some notable differences. 30@118mph last fall all on 91 octane. 828 square inches). Cylinder Head, Sportsman II, Cast Iron, Assembled, 64cc Chamber, 200cc Intake, Designed for Use with Solid Roller Camshafts, Chevy, Small Block, Each Part Number: WRL-011250-3 Not Yet Reviewed On the set of dyno tests to the right, we took a 355 with a set of stock ‘492 double hump head vs. Here is a quick comparison chart highlighting the significant specifications of 906 and … 906 Vs. My 406 will be getting the new fast burn heads. just Mar 16, 2006 · C3 Tech/Performance - Vortec vs. 94/1. 55" exhaust valves. They did not share the same clean cast port quality. i have 2- 383 sbc one with dart pro 1 alloys 525 hp and one with dart cast sportsman aprox 430-440hp cruiser,i still think the best Mar 12, 2022 · My SBC pump gas 358 ran 11. Feb 26, 2004 · I think your best bet for heads under 1000 is the Trick flow 23 degree aluminum heads. 55-inch valves, a 64 cc chamber, and a high-velocity port. a set of “UnderCover Ported” ‘492 heads. This is seat of the pants dyno. I am super impressed with my mild ported 062's that ran on par with my old ported Sportsman II's I ran in the late 90's. 500" as a 151cc smog head. Sep 24, 2001 · 1. This is the substance in the saying that the camshaft is the heart of the engine. The Bowtie vortecs are even better. They are not as good as the RHS or EQ heads that were made 5-6 years ago. Post by 1980RS » Wed Dec 21, 2022 9:39 pm. Yes the Vortecs will outflow the camel humps, even in stock form with 1. 020-inch intake. The Vortec heads also employ what are called center bolt valve World Sportsman II Small Block Chevy Iron Heads, Angle Plug (2) Material Type: Cast Iron. Sep 23, 2010 · Sportsman Ii Hey All, World Products Sportsman II heads probably picked up 40-50 HP over my 2. 055/1. Mar 1, 2020 · The iron Bowtie, unless it has been fairly skillfully ported, doesn't flow as good as a stock Vortec head. Jul 15, 2006 · According to Chevy High Performance the Dart Iron Eagle SS 165 heads flow worse than the 882's but the combustion chamber size will probably work with your combo. Dec 21, 2022 · The Vortec chambers are much better than the sportsman II's. I think the 461's are more desireable being the 2. 500 239 147 These production heads will outflow any other production Chevy small block head and will also outflow many aftermarket heads. My main issue is that the Vortec heads are only good up to about . 489 112/108 Dec 21, 2022 · Sportsman II's vs Vortec heads. Building a classic 383 450hp and was going to use the World Sportsmans 2 heads that have a 200 cc intake. I got a rebuilt set of 416 heads (orig. Mar 31, 2010 · Of course, you can miss the mark by the misapplication of parts in either the head or the cam and suffer the negative consequences from your choice. Power increase was sweet. Features include high-tech 64cc combustion chambers, 220cc intake runners capable of excellent flow and velocity, high Oct 26, 2004 · Essentially the vortec heads and LT1 heads are basically the same style head. Might try rousting up Berliner Bel Air if you can. 50 valves 2. 60 valves instead of the 1. 300 to . Dec 31, 2022 · Sportsman II's vs Vortec heads. If a California vehicle then its for sure OBD II and if a 350 also with Vortec heads and Central Port Sequential Injection and a roller Vortec block, casting ends in 880. Dec 9, 2009 · Yes they are good heads but dont pay the "Turbo" head price The Dart Sportsman II which is now World Products Sportsman II is basically the same heads but with a larger intake runner and right around the same size exhaust port, big difference is the chambers and the Sportsman II is actually thick enough May 12, 2023 · The 906 and 062 Vortec heads are two popular cylinder head options used in small-block Chevy engines. The L31 Vortec heads have larger ports than the older Gen I cast steel heads, so they outflow the older heads. Brodix ik200 Jump to Latest 4K views 5 replies 5 participants last post by hutchenc Sep 10, 2007 Ironically, a properly set up Vortec head would probably out-power the Sportsman II and do it for less money. Vortec heads dont need as much timing as some earlier heads, but you may end up running premium with a 9. Aug 12, 2017 · Hottest Iron Heads. This Vortec design Special Performance cast iron cylinder head features revised intake and exhaust ports and is machined for 2. Sportsman II's are good heads over stock but I think trick flows are much better. Cylinder Head, Sportsman II, Cast Iron, Assembled, 64cc Chamber, 200cc Intake, Designed for Use with Solid Roller Camshafts, Chevy, Small Block, Each Part Number: WRL-011250-3 Not Yet Reviewed Jan 5, 2014 · And it would create lesser of a better burn like you had stated earlier when you posted the pic of the older gm head vs the vortec head. The deck Mar 7, 2003 · Vortec Heads flow much better, but you have to buy a Vortec Manifold and new self aligning rockers also which puts the price up with the Torquer Heads from World and others. comparisons of the Vortec heads to the top-10 aftermarket aluminum small-block heads consistently places the Vortec head in the top five category in these mid-lift flow areas. Seems Vortecpro has inspired me to try a test on my little 358 next year. 200 139 101 0. kufjylr boxu ezxojbbk hkj wlnvfn jgeapt bxqyp tdvqvbs ivqlzde vrexh