Headers - The 1947 - Present Chevrolet & GMC Truck Message Board Network

xextr3m3 · 10-12-2003, 02:37 PM

Have any of you had luck using summit headers.

Nobobdy really lists a header for 60-66 trucks.
anyways my 61 has a SM420 (4speed) and it has the extra crossmember towards the front of the transmission.

Will these headers fit:
http://store.summitracing.com/partde...rt=SUM%2DG9006

only reason i am considering is because i can get them cheaper

cap10 crunch · 11-08-2003, 05:18 AM

You get what you pay for. I gotta swap out my Headman headers for Doug's. The #3 & 5 cylinders are angled too close to the plugs, and I keep melting plug wires.

Measure twice, buddy. I thought I was saving some cash, and ended up paying for it!

74Pumpkin · 11-08-2003, 11:16 AM

I bought those same ones. They have worked ok. But it made it a real real pain to change the back two plugs. Or the second to last plugs I ended up breaking off the plugs in able to get them out cuz I couldn't get a tool on them. And my plug wires have melted twice.

Mine have been on for two years and they have rusted quickly. The collector flange rusted out Really quick and leaks.

When I bought them I knew they were the cheapest I could find and its what I was looking for. ( Cheap ) It did what I wanted and got me through temporarly. but when I buy another pair I'm going to upgrade to a better set.

Just my experience with them.

LeRoy · 11-09-2003, 11:42 AM

Are you running header shorty plugs. They made a huge difference in clearance for me, when running headers. Accel makes them and they seem to be a good plug

Don T. · 11-09-2003, 12:44 PM

I put a set of the cheap Dynomax headers on my 66 GMC's 327 to replace the totally rotted-out ones that a PO put on it when he swapped the motor & tranny into it. They were the only thing I could pick up locally (read "quickly!") and went on fine in spite of the homebuilt bracketry for the alternator & PS pump that was used. I do have to use a 13/16" combination wrench to tighten the #6 plug; some of the others are tight but doable with the plug socket & rachet with a U-joint in line. The paint went away REAL quick; probably should have ordered a set with ceramic coating but wanted to get it on the road to drive to the exhaust shop. It had nothing but the headers on it when I got it and the collectors were almost completely gone on them!

Now it's got a nice 2 1/2" system that exits behind the fenders & sounds sweet...

jwart · 11-09-2003, 02:08 PM

what brand headers did u go with or r they custommade?
tanks jwart

nevr look bak

74Pumpkin · 11-09-2003, 03:47 PM

I didn't know they made short plugs just for headers. That would make a HUGH diffrence. The regular one ar a real pain to change! Its amazing how much info I get here.!

Don T. · 11-09-2003, 07:08 PM

Quote:

Originally posted by jwart
what brand headers did u go with or r they custommade?
tanks jwart

nevr look bak

They're Dynomax headers that I bought from the local Advance Auto Parts or Auto Zone in town; around $90 or so for the pair. They came with the gaskets, new bolts & collectors; don't buy extra & then have to take them back like I did!

cap10 crunch · 11-10-2003, 03:45 AM

Started using Accel shortys... I like em. They are still too damn close to the pipes, but it's a cheap fix for now.
I just dropped $700 on an Ididit column and steering wheel. Looks purty, but Ouch! The headers have to wait...

xextr3m3 · 11-10-2003, 04:45 AM

upadate on headers.

I bought the damn summit headers

these headers were never designed to be used in a 60-62 with 4speed and mechanical clutch linkage.

I had to "clearance" my crossmember and collecter, cut arm off linkage and reweld it in a different possition, and they cleared the torsion bars by about a 1/4 in., maybe.

some of the primaries barely clear the plugs and I think 2 maybe three plugs cannot be taken off with a plug socket, but a wrench can be used fortunatly.

recommendation: Dont run SM420. dont uses these headers in your 60-62.

my other tread: http://67-72chevytrucks.com/vboard/s...threadid=75471

10-12-2003, 02:37 PM	#1
xextr3m3 Registered User Join Date: Aug 2003 Location: Fremont, CA Posts: 96	Headers Have any of you had luck using summit headers. Nobobdy really lists a header for 60-66 trucks. anyways my 61 has a SM420 (4speed) and it has the extra crossmember towards the front of the transmission. Will these headers fit: http://store.summitracing.com/partde...rt=SUM%2DG9006 only reason i am considering is because i can get them cheaper __________________ 62 c10 short fleet 350/350 dropped 87 toy: SAS 35" MT/R's, 5.29's, detroit rear, exocage

11-08-2003, 05:18 AM	#2
cap10 crunch Registered User Join Date: Nov 2003 Location: L.A. California Posts: 6	You get what you pay for. I gotta swap out my Headman headers for Doug's. The #3 & 5 cylinders are angled too close to the plugs, and I keep melting plug wires. Measure twice, buddy. I thought I was saving some cash, and ended up paying for it! __________________ Cap10Crunch 1964 C10 shaved & slammed 350/350

11-09-2003, 11:42 AM	#4
LeRoy Registered truck nut Join Date: Dec 1999 Location: Mt. Vernon, Washington, USA Posts: 1,584	Are you running header shorty plugs. They made a huge difference in clearance for me, when running headers. Accel makes them and they seem to be a good plug __________________ MOUNT VERNON, WASH. STATE Need a part? Just PM me

11-09-2003, 12:44 PM	#5
Don T. Procrastinator Supreme Join Date: Oct 2003 Location: Toney, AL Posts: 86	I put a set of the cheap Dynomax headers on my 66 GMC's 327 to replace the totally rotted-out ones that a PO put on it when he swapped the motor & tranny into it. They were the only thing I could pick up locally (read "quickly!") and went on fine in spite of the homebuilt bracketry for the alternator & PS pump that was used. I do have to use a 13/16" combination wrench to tighten the #6 plug; some of the others are tight but doable with the plug socket & rachet with a U-joint in line. The paint went away REAL quick; probably should have ordered a set with ceramic coating but wanted to get it on the road to drive to the exhaust shop. It had nothing but the headers on it when I got it and the collectors were almost completely gone on them! Now it's got a nice 2 1/2" system that exits behind the fenders & sounds sweet... Attached Images __________________ Don T. `66 GMC SWB SS - 327 & TH350, factory PS & PB, current project truck `01 Jeep XJ - Solar Yellow 2D w/6" lift, 33s and 4.56 posi `04 Scorpa SY250 - my newest off-road vehicle! Other asst. yard ornaments... inquire within

11-09-2003, 03:47 PM	#7
74Pumpkin Insert witty comment here Join Date: Nov 2003 Location: Lakeville Minnesota Posts: 388	I didn't know they made short plugs just for headers. That would make a HUGH diffrence. The regular one ar a real pain to change! Its amazing how much info I get here.! __________________ So many trucks, So little time!

11-08-2003, 11:16 AM	#3
74Pumpkin Insert witty comment here Join Date: Nov 2003 Location: Lakeville Minnesota Posts: 388	I bought those same ones. They have worked ok. But it made it a real real pain to change the back two plugs. Or the second to last plugs I ended up breaking off the plugs in able to get them out cuz I couldn't get a tool on them. And my plug wires have melted twice. Mine have been on for two years and they have rusted quickly. The collector flange rusted out Really quick and leaks. When I bought them I knew they were the cheapest I could find and its what I was looking for. ( Cheap ) It did what I wanted and got me through temporarly. but when I buy another pair I'm going to upgrade to a better set. Just my experience with them.

11-09-2003, 02:08 PM	#6
jwart Registered User Join Date: Sep 2003 Location: n.e. IL border Posts: 208	don T what brand headers did u go with or r they custommade? tanks jwart nevr look bak

11-10-2003, 03:45 AM	#9
cap10 crunch Registered User Join Date: Nov 2003 Location: L.A. California Posts: 6	Started using Accel shortys... I like em. They are still too damn close to the pipes, but it's a cheap fix for now. I just dropped $700 on an Ididit column and steering wheel. Looks purty, but Ouch! The headers have to wait... __________________ Cap10Crunch 1964 C10 shaved & slammed 350/350

11-10-2003, 04:45 AM	#10
xextr3m3 Registered User Join Date: Aug 2003 Location: Fremont, CA Posts: 96	upadate on headers. I bought the damn summit headers these headers were never designed to be used in a 60-62 with 4speed and mechanical clutch linkage. I had to "clearance" my crossmember and collecter, cut arm off linkage and reweld it in a different possition, and they cleared the torsion bars by about a 1/4 in., maybe. some of the primaries barely clear the plugs and I think 2 maybe three plugs cannot be taken off with a plug socket, but a wrench can be used fortunatly. recommendation: Dont run SM420. dont uses these headers in your 60-62. my other tread: http://67-72chevytrucks.com/vboard/s...threadid=75471 Attached Images __________________ 62 c10 short fleet 350/350 dropped 87 toy: SAS 35" MT/R's, 5.29's, detroit rear, exocage Last edited by xextr3m3; 11-10-2003 at 04:48 AM.



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