I bought headman headers that have 1 5/8 primaries and 3" colectors. Will there be any clearence problems and how well do these headers flow? These are going on my 82 camaro with 350 and borg warner 4 speed.

 

I dont really know if they will clear your car but I DO know they flow pretty good. Once I hit about 3000 RMP, hold on to your hat! I gained some goo d power in the mid range with them.

Chris

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1987 GTA 350,rebuilt in 1998. new heads, headers w/y-pipe, 45,000coil, accel plug wires and cap&rotor, k&n, b&m shift kit and trans cooler, modified mass airflow sensor, manual fans switch. No time slip.

1993 Bonneville SSE ALL STOCK. 95,xxx miles and stil counting...

 

I had to notch the rear mount on the drivers side lower control arm and notch the crossmember to get the left header to fit. It could have been just my car or the type of engine mounts I was using but you may experiance the same fitting problem. The right header is a simple install only requiring removing the starter to get it in.

Of course that's also when I had a 383 in the car. The big block and the header installation was even worse but it's finally in.

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Follow my racing progress on Stephen's racing page
and check out the race car

87 IROC-Z Pro ET Bracket Race Car
383 stroker (carbed) with double hump cast iron heads and pump gas
461 Big Block installed and ready for the 2001 racing season

Best results before the 383 blew up
Best ET on a time slip: 11.857 altitude corrected to 11.163
Best MPH on a time slip: 117.87 altitude corrected to 126.10
Altitude corrected rear wheel HP based on power to weight ratio: 476.5
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley

 

I've always had problems getting hedman headers to seal. Their flanges are too thin.

James

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1985 Z-28 305 TPI
221,000+ mi., Original Eng.

 

They will flow just fine.
The only issue with Hedman is they are an economy header and will be lacking in quality of build.
Just so you know.
good luck
ODB

 

We have the Headman shorties on our 82 Z28 and had no clearence problems at all what so ever. We put both sides in from the top with the motor in the car. Here are a couple of pics of the Headers in the car now.
<IMG SRC = "http://members.aol.com/littlemzdngerous/Driversheader.jpg">
<IMG SRC = "http://members.aol.com/littlemzdngerous/passheader.jpg">

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82 Z28 with 350.motor has .030 forged flat top pistions other wise stock bottom end, Summit 214/224 cam with 1.6 Harland Sharp roller rockers, stock 882 heads for now (will be getting a set of the 23 degree Trick Flows this summer), Performer RPM intake, Holley 750 Vacuum secondary, Th350 with 2200 converter, stock 3.23 geared rearend for now (getting 9" later on), Headman shorty headers, custom 2.5" into 3.5" Y pipe into M.A.C. offroad pipe and M.A.C. cat back system. So far car has only been to the track twice and is having sever traction problems but is running 60'-2.34 1/8 mile-9.2 @ 79 MPH.

 

the man asked about long tubes I believe??
well i plan on these two and jegs (not that I would order from those A**holes anyway) says they wont fit without mods
but Ive talked to enough people that say they will to start saving for a pair.
this post could change my mind however, if people start coming out of the woodwork with horror stories.
james

 

I have full length hedmans with 1 5'8 primaries. Mine fit very well with no major problems. My car doesn't have emissions equipment or A.C. so that made it a lot easier than it would have been otherwise. Ground clearance is very good if you do a good job making the y-pipe.

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84 Camaro 305 ported & milled heads, 3 angle valve job, Edelbrock Performer RPM intake, Hedman full length headers, Accell ignition, Crane 274H cam, B&M 700R-4, 3000 stall speed, 4.10 gear,
M/T ET street tires
visit my website at http://www.geocities.com/jbenge/page1.html