73-87chevytrucks.com
73-87 Chevy _ GMC Trucks => Performance => Topic started by: 305chevy c-10 on February 15, 2011, 07:00:38 PM
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i got my EQheads in (ch350e ) .i had a edelbrock performer intake to go with them but the heads runners are larger than the intakes ..........my question is do anyone know of a dual plane intake with large runners to fit pre 86 style intakes .(12) bolts ...........i brought the heads with this pattern because i figured the intake would fit ...
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what part# is the intake?
do the bolt holes line up?
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edelbbrock 2101 .........yeas they line up ...just ports not covered fully .......i did this test fit without gaskets
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that intake should fit those heads.
try a dry fit with the intake gaskets.
also how thick are your head gaskets?
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Sounds like its time to whip out the diegrinder!
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oh so the ports on the intake can be opened up a little ..........i was in a hurry trying to beat night fall when i did this test fit .....never got back to it ..will re try tom
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NO! The CH350E heads, these (http://cgi.ebay.com/ebaymotors/CHEVROLET-5-7L-350-CYLINDER-HEAD-170CC-64CC-69-86-SBC-_W0QQcmdZViewItemQQhashZitem20b51e582dQQitemZ140477618221QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories) (right?), are a vortec port with an early style bolt pattern. The only intake that will fit that port close enough is a raised runner intake (which are only available in single plane high rise configuration). If you grind your 2101, you will find that you run out of material at the top of the runner before a match is met. If you REALLY want to use that intake on those heads you're going to have to weld material on top of each intake runner, machine the mating surface flat, then port match.
Confirm what I just said, use a gasket as a template to gauge how much material you would need to remove before you whip out the grinder.
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yes those are the ones......what about this ebay item #
330354600604 these ports are close to the size of the head ports .........also intake has to clear the spider in lifter valley (roller cam block).........im guessing noone has used these heads before on here .....hope i didnt make a bad choice verse a stock vortec head
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Did you check for yourself about being able to port match the 2101? Don't put it past me to be completely wrong. Do this before chasing down another intake.
Also, definitely contact EQ and see what intake they intend for these heads, and report back.
Copied from their site:
EngineQuest Sales:
David Wilson (800) 426-8771 Ext. 209 djw@aaeq.net
Don Knetzger (800) 426-8771 Ext. 232 djk@aaeq.net
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thanks for the info .......i looked again at the 2101 it would destroy that intake trying to port match it ...too much of a diff in size .........sent eq a email about heads
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Let us know what you find out.
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Where is the mis-match...on the top? I saw the Vortec combustion chamber, but didn't recall seeing anything about a Vortec intake port size. How far off & where is the problem? Is the head port larger than the intake port in every direction...as in "There would not be an obstruction of flow going from the carb toward the intake valve?" Lorne
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the ports on the heads are narrow but longer than the intakes ......i may be a little off but i measured 1.140w...2.136 h on the heads .....i saw this intake on ebay SBC CHEVY SB GM Air Gap Aluminum Intake Manifold 65-95(high rise dual plane .2.09 x 1.25 port dia)....wainting on guy to let me know if he thinks it will work .......you guys check it out ebay item# 330354600604 under EBAY MOTORS
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from your last question;
if your intake runners are larger than you heads in any direction I would think that this would create a turbulence problem.
Where is the mis-match...on the top? I saw the Vortec combustion chamber, but didn't recall seeing anything about a Vortec intake port size. How far off & where is the problem? Is the head port larger than the intake port in every direction...as in "There would not be an obstruction of flow going from the carb toward the intake valve?" Lorne
This makes sense as long as the 2101 has enough surface area for a tight air seal.
your heads are designed to make an unmatched intake work with the vortech design which has taller runners.
I would not order another intake without talking to some at enginequest and getting their recommendation
With heads you have, based on what they are designed to do, I would expect the 2101 to work.
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THE GUY ON EBAY AT kmjperformance said he think thedual plane high rise intake should fit its has 2.09 x 1.25 port where as my heads have a 2.136 x 1.139.will wait before i order it .to hear from EQ
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THE GUY ON EBAY AT kmjperformance said he think thedual plane high rise intake should fit its has 2.09 x 1.25 port where as my heads have a 2.136 x 1.139.will wait before i order it .to hear from EQ
I have found KMJ Performance to be a good source for parts.
give the sizes of the intake runners are slightly smaller than the heads i would at a consider machining a small radius at the end of each runner on the intake to reduce the potential for turbulence.
Hopefully eq has a good answer for you, otherwise I don't understand why they ever made these heads.
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i know right
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The only thing I can figure was they were designed for racers that are required to use a stock intake manifold, but want the performance benefits of the vortec heads and are willing to perform extensive port matching.
I hope I'm totally wrong about these heads, because the price is very nice.
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yeah i hope u r wrong as well...........the minute i find out i'll let you guys know ........however im really thinking about the one i saw on ebay from kmjperformance ....its fairly close .alot closer than the 2101 ......maybe .100 off in port width ...i figure splitting the diff
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well guy .....here it is ......i got summit to contact eq because they gave me no real answers ......needless to say summit didnt get any either ...........however summit 's tech loked at the spec s of the heads and came up with EDL-7501 or 7101 whitch is both designed to fit gm bowtie heads ..port a 1.140 x 1.195 ..which are only .186 shorter than my port height ....which he said i should be able to split .093 top and bottom ...he told me to use edl-7201 gasket to port match them ..glue this gasket to head and tighten down intake them remove it and use a marker to trace what needs trimming (any sticky compound the will hold gasket on intake after its remover from head will work)...................what do you all think .......
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I just got off the phone with Don at Engine Quest. He confirmed that these heads are a vortec port and would most likely require you to both grind the cylinder head ports wider, grind the intake runners taller, and possibly weld additional material to the intake. He also said that the reason these are priced so attractively is they are being discontinued.
That said, it is possible that there is a dual plane intake out there that will work. I would buy the recommended gasket for say an Edelbrock RPM intake as the summit guy advised, before buying an intake, just to see how far off it is. It should be significantly taller than your 2101 intake. Also, I've seen it mentioned that there can also be a mismatch at the bottom of the port causing a leak into the lifter valley. I have no idea is this is true or not, but sizing up a gasket will give you an idea before you order another intake. Keep in mind the vortec port is not just taller but the port floor is also raised in the head. Some pics of the mismatch when you get that gasket might help us help you.
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Lay the gaskets that match the ports on the heads in place with duct tape under the ends and put the end seals in place as well for mock up purposes. Place tape under the gaskets sticky side up and then bolt the intake on correctly. Fold the tape over onto the intake so the gaskets don't move. Carefully remove the intake and flip it over to give yourself an idea of how far off your port match is. Also take into consideration the gasket match to the port openings, if they are way off make your own template.
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Well I can see why these heads are being dicontinued.
I would seriously consider selling these heads and get the stock vortech heads, it'll cost a little more but in the end you'll gain piece of mind and you won't have to worry about buying an intake that might not work.
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can i ask are they call e tec 170 head or 200 head if they are they use the vortec intake u have a old school intake.
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they are called eq-ch350e ......i have both intakes ..old one is way off ..new one from kmj may work but i will have to get maybe the machine shop guy look at it ...i will let u guys see this weekend ....i took pics of it .....maybe yall can give me direction ..my opinion is to make head ports bigger ...0.120 on outside .[] . ^[][]^ . . ^[][]^ .[] .
edge to make them wider ( the arrows show the side that problem)...the height is only off by about .070 ........so im thinking get the heads port to match the intakes .iwll be easier than getting the intakes ports to match the heads.....u under stand me more when i show pics ........the new intake covers all the ports but they just are off ....i know someonensaid use a die grinder .but i dont wanna destroy my heads ..................i know they were only 260 shipped but.....
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does anybody know the average cost to port and polish heads for an intake to match it
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That's a by-the-hour sort of deal. Paying someone else to do it would more than defeat the deal you got on the heads.
Do as Vile said and use the gaskets to determine where material removal is needed. Then check out the pics of the heads on this page and get inspired:
http://www.nastyz28.com/forum/showthread.php?t=56505&page=8
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any update on the head and intake i got this same set of head run in to the same thing
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well i took mine to a guy who does all port work on the local dirt circle track guy's heads and .he said its no problem ....he can port match them .......i bought vavles and springs froma guy on ebay for $125 CHEVY 350 HIGH PERFORMANCE VALVES AND SPRINGS FULL SET
GM 5.7 SMALLBLOCK 1.94 1.50 STAINLESS SWIRL POLISHED
the guy at shop tested the springs good for 550 lift @310lb ...115 on seat............i paid 275.00 for the whole job that including assembly
Item condition: New
Running Strong, LLC is proud to offer this full set of high performance valves that fit the Chevy small block engine. These are super high quality valves that are brand new. They are stainless steel swirl polished. The intake measures 1.94 and the exhaust measures 1.50. They are a direct fit with no mods for any four barrel carb 350 1986 and older and any fuel injected 350 1987 and up. The springs will work with your stock cam as well as an RV cam or mild street cam. This listing is for a full set of 16 valves and 16 springs. Running Strong, LLC offers both new and used automotive parts.
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i got my heads open up and the intake done now to it not that bad of a job to do what intake gaskit did u use?? i got falpro 1255
well i took mine to a guy who does all port work on the local dirt circle track guy's heads and .he said its no problem ....he can port match them .......i bought vavles and springs froma guy on ebay for $125 CHEVY 350 HIGH PERFORMANCE VALVES AND SPRINGS FULL SET
GM 5.7 SMALLBLOCK 1.94 1.50 STAINLESS SWIRL POLISHED
the guy at shop tested the springs good for 550 lift @310lb ...115 on seat............i paid 275.00 for the whole job that including assembly
Item condition: New
Running Strong, LLC is proud to offer this full set of high performance valves that fit the Chevy small block engine. These are super high quality valves that are brand new. They are stainless steel swirl polished. The intake measures 1.94 and the exhaust measures 1.50. They are a direct fit with no mods for any four barrel carb 350 1986 and older and any fuel injected 350 1987 and up. The springs will work with your stock cam as well as an RV cam or mild street cam. This listing is for a full set of 16 valves and 16 springs. Running Strong, LLC offers both new and used automotive parts.
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felpro 1205 .........this is what came with intake
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got my completed heads and intake port matched .............on to next step..................will 500 temp engine paint stay on heads or they get hotter than that
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If your prep work is good it will hold.