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Old 08-07-2003, 06:56 PM   #1
c-tenkid
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Header clearance problems.

Yesterday my clutch in my truck bit the dust.I decided to go ahead and swap the motor why I was at it.


So the old motor and trans came out.The new motor was assembled.And we started to put it back togother.Well I forgot to put the oil pump driveshaft in.Also I had messed the clutch up.So my buddy came over that works at a chevy dealership and he helped me get it straightened out.So we put the motor back in for the 2nd time.We got my new hedman headers bolted on.


Anyway we got to the clutch linkage.There is a little socket that bolts to the side of the block.(right above the oil filter)That the rod that goes from the frame rail to the block.Then another rod goes off that and pushes on the fork.Anyway the header tube is right in the way.I ordered the headers for a 69 c-10 with a 350 and a 3 speed trans.The guy at summit even made sure.I am pretty sure they are the right one's.




Any help would be so awesome.I want my baby alive again!
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Old 08-07-2003, 08:00 PM   #2
77bowtie
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I had a set of BlackJacks on my 68 and I had to cut off the tab and weld it back in a better location before I could push in the clutch fully. Its not a big thing just one more mod to do.
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Old 08-07-2003, 08:23 PM   #3
c-tenkid
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What tab did you cut off?


This sucks because I have no welding wire for my mig.I also didn't pay 120 dollars for some headers only to have to hack up other stuff to make them work.

I really don't see a way to make them work.I don't want to use the ram horns again either.This just bites.


I am tired of laying under the freakin thing wrestling with it to.I don't know what to do.I will work on it again later.It's just being a PITA.
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Old 08-07-2003, 10:20 PM   #4
RACING29
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Beat it with a big hammer and if that don't work geta bigger one.
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1967 Chevy truck, R1 racing seats, 4 point racing harness, 4/6 drop, primered blue, soon to be shaved, 350- 060. over, flat top pistons, Eagle rods, Edelbrock Aluminum heads, 1.5 Scorpion roller rockers, Lunati 515" cam, mallory ignition, Holley 750 double pumper carb, Built 350 turbo trans, 2500-2800 boss hog stall, 20 gallon aluminum fuel cell!!!
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Old 08-07-2003, 10:44 PM   #5
77bowtie
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The tab that the clutch rod fits into. Its on the peice that sits between the frame and the pivot ball on the block. I had to move that tab outward just a bit so that it and the adjusting rod wouldn't hit on the header when pushing in on the clutch.
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Old 08-07-2003, 11:06 PM   #6
c-tenkid
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I fired her up tonight.

I have it all back togother except for the radiator,fan,shroud,Clutch linkage,Exhaust.


She fires right up and sounds like a beast through open headers.


The problem isn't the the tab.The problem is the header tube is right in the way.I mean exactly right where that goes across.So beating it with a hammer isn't an option.


Thanks for the tips guys.


Also the passenger side head there is a plug.It is close to the #6 plug.Does anyone know what size it is.I still need to get that.As well as this clutch linkage problem fixed.


Also the paint on my headers already burned most of the way off!Can I repaint them with him temp paint?Or is there special header paint?


Hearing my baby fire up again made all this hassle worth it!
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Old 08-07-2003, 11:36 PM   #7
crazy longhorn
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Headman makes a couple different # on headers, the 69090 wont fit the stick if the sb is mounted in factory location(one header tube is in the way of the Zbar).......they call for a 69092 to fit the stick(you better check that 2nd # to be 100% sure). The 69090s will fit for stick app......if you are mounted in I 6 position with the sb, & there are some mods to be done to fit the linkage. The hooker comps on my longhorn will fit with stick (2452), but show a bend in one link (top) arm on the Zbar to clear a tube.......I couldnt say tooo much about that mod ,or bend as most of my linkage is custom made to suit the I 6 position, & moved to the left to give a straight shot from the peddle to the Zbar. The hole in the firewall was also moved. let us know which position the eng is sitting (I 6 ,or factory sb), & im sure there is a route around the "hassle". crazyL
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Old 08-07-2003, 11:47 PM   #8
c-tenkid
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The motor is in the factory small block position.


Where are the #'s to check what headers I have?


I just found out the motor I took out of my truck was a 307!


The guy that sold it to me told me it was a 350.It ran hard for a a 307.Now I got a 350 in her though.


One of my buddies told me it wasn't a 350.I told him he was crazy.I kind of feel bad now.
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Old 08-07-2003, 11:55 PM   #9
dregs454
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I have some blackjack headers, put on the passenger (easy) side. I really hope the driver side is gonna fit, I have a 350 with granny 4 speed. it kinda looks like that bar that the clutch linkage mounts to is gonna be in the way of the farthest back tube. It seemed kinda odd the headers that came with the kit, same headers for all 4x4, 2wd, std, auto and 1/2, 3/4 trucks from the years 66-91... anyways, I guess I'll see tomorrow if they fit. Wish me luck!
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Old 08-07-2003, 11:56 PM   #10
crazy longhorn
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the # should be stamped on the flanges that bolt to the heads. You might do a little checking on hedmans web site...... http://www.hedman.com/
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Old 08-08-2003, 12:09 AM   #11
c-tenkid
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Thanks crazylong horn.I will check that out tommorow.I just went out in the garage only to find a giant puddle of gas.My fuel line was leaking.So I fixed that.Also the starter quit working already.I have had running maybe 45 seconds and the heat from the headers already got the starter?I think something is telling me to run the ram horns!


If these are the wrong headers what would you guys do?I can't really return them.Most of the paint is gone now.Man I swear I have some bad luck.
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Old 08-08-2003, 12:35 AM   #12
crazy longhorn
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if you have the wrong headers,one choice would be to move the brackets to slide the Zbar behind the rear tube. My guess is you have the rear tube right in line with the ball for the Zbar(if its the set of headers I am thinking about). Its always easier when the pcs bolt together like they should, but if you are stuck with the headers, you can find a way to make them work Good luck,crazyL
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Old 08-08-2003, 09:50 AM   #13
lukecp
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The paint will smoke off in intital startup with the headers. I put Heddmans on my truck over 2 years ago, and for the first hour or so of run-time with the headers on, they smoked a little bit. This is because the paint on the headers is cureing by the heat. It should turn a nice flat-black color, and it will be much tougher and a little more rust-resistant.

Also...my starter is now starting to not want to turn over when the truck is hot (it bogs down a little bit...then turns right over), but it has now had 2 years and over 20k miles of header heat subjected to it. I will proably just throw a heat shield on the next starter i put in it, and it should be OK.

You will like those headers once you get the clutch issue sorted out. I put them on mine and they made the truck sound about twice as good going through the same exhaust system, and they made a little difference in power. As long as you route your plug wires good, and keep the flange bolts tight to avoid blowing gaskets, you will like them alot.
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Old 08-10-2003, 01:14 PM   #14
c-tenkid
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Well I looked at my summit order form.I got the wrong one's I have part # 69090 and then there is an S like an inch behind it.


I am thinking I might be able to take the header off and take it to a muffler shop and see if they can bend the one tube out of the way.I am going to try that.

Also I don't have my temp sensor hooked up.I found a green wire on the driver side that isn't connected to anything.I was wondering if that was it.The thing is I don't see how it connects to the temp sensor.



Thanks for anyhelp.I need to get this thing back on the road,Even though driving a 2001 silverado in the meantime kind of makes it a little easier!
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Old 08-10-2003, 01:27 PM   #15
77bowtie
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Kid IMHO you would be better off sending those back and getting the right ones, way better off. But that is just my thought on the matter. Good Luck either way....Jon
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Old 08-11-2003, 12:25 AM   #16
c-tenkid
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Today I got it in time.I also got the cooling system put backtogother.I put the temp sensor in the intake.The only thing I have to do is figure the clutch linkage out.I think I am going to order the right headers.I can use these headers on my 67.I think I am going to order some ceramic coated one's.I might trty to figure something out in the meantime.

I have to break the cam in.I have to figure out how to orginaze the plug wires still.I also have to get some more gas.I had a fuel leak and now I am on E.My oil pressure is good.Everything appears to good with no leaks.I am happy.



One thing I have noticed is this 350 doesn't rev nearly as fast as the 307 did.I wouldn't think the longer stroke difference would matter that much.I think if I turned 5500 with this 350 it would be would out.I turned 6500 with my 307 mutiple times.


The specs on the motor aren't great.

78 350 4 bolt main
Lunati cam with 458 lift,218 duration on a 110lsa
lunati lifters
double roller timing chain
Hedman 1 5/8's headers
performer RPM intake,
edelbrock 1406 carb
HEI with new coil,cap and rotor
462 heads with 1.94/1.50 valves

Nothing fancy.But it's mine!
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Old 08-15-2003, 01:50 PM   #17
c-tenkid
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Well I got the header thing straightend out.I took the driver side header off.Then mounted the clutch linkage like it was supposed to be.I used a hammer and had to beat the back header tube in a little.It acctually wasn't as far as I thought.

I have spent the time since I got her running tuning her.I got it pretty close.When I shift into third at 55mph it barks the tires.I ran my buddies caddillac seville today.It has a 4.5.I pulled on him so hard to 80 I hit the brakes.She runs really good.I am happy.I thinking low 15's high 14's.Everyone keeps telling me it should be faster than that.I had a guy tell me mid 13's.I know it's not that fast though.


In the meantime.I started porting my 408's heads.There 493 castings.I am going port and polish them.And have new 1.94/1.60 valves put in along with having them milled.I am hoping for atleast 415 horsepower and 450 foot pounds with it.I am going to run a cam with around .510 lift,230ish duration.That along with a victor JR intake and a set of 1 5/8 headers.Do you think this will get my close to that.I am pretty excited about this engine.I bought a book by david vivvard about building small blocks.Alot of good tips and advice.
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Old 08-17-2003, 09:40 AM   #18
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Glad your up & running! Enjoy!
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