toupstrio

Putting some headers on the 79 Summit has a set of ceramic coated for $229.00 they are FlowTech Headers has anyone used them? Surely they would be ok?

silver74vette

I do not have those specific headers but I have ceramic coated block huggers. I love the ceramic coating but be careful, I thought I had a bargain but ended up with spark plug clearance issues. I had to use the time worn method of denting the headers which ruins the ceramic.

Hopefully someone with experience with those particular headers is in here.

Budman68

Toupstrio, clear your PM's. I'm trying to send you a message.

mandm1200

I have them and bought them from Summit. They fit just fine. They were installed from underneath the car without any problems. All spark plugs are accessible but there are a couple where I have to use a wrench on the spark plug socket instead of a rachet. After 4 years they still look good, just more dull in color. I am pleased with them considering the low cost.

1970-Bronze

I have them also. Fit just fine.

I don't have much run time so I can't speak to the durability - yet...LOL

Rdavis

I have Dynomax on my 76 & been pleased with them for the price. Very easy install. Plug acces is ok. Been on the car for about 2 years & still look good, finish has dulled out somewhat but still look good.

http://store.summitracing.com/partde...5&autoview=sku

toupstrio

Pm's cleared please send message.

79VetteMike

I've had very good fitment with Dynomax on several different models of Chevrolet-including my Vette. I have a set of Summit(Flowtech) on my 1970 Monte Carlo. With the stock heads, they fit ok, but with aftermarket aluminum heads, the fit is terrible.

kdcollins

I have FlowTech's on my 76.
Good fit and nice header for the money.
Mine have been installed for a little less than a year. No spark plug clearance issues on stock heads other than having to use a wrench on a few for installation.
However, I have switched to aluminum heads lately and clearance is now an issue.


I had to do like many others and dimple, wrap and then sleeve the wires .

Also, try to keep in mind, ceramic headers WILL rust, as you can see in the pic above.

KC

Phil Zell

Have a set on my 75, nice headers. No clearance issues.

TopGunn

I have them on my 75 also with ZZ4 engine and Al heads, full length headers. Perfect fit, have also noticed that the cabin was cooler due to reduced under hood temps from the ceramic. Flanges are slightly heaver than the Dynomax I'm told.

Bill

MN81C3

If i may ask a quick question on headers. I have an 81 and plan to convert to headers - should i go with full lengh or shortee's? I already have dual exaust with Dual HP Converters.

freckleface

i have the flowtech ceramic coated on my 80, with a set of dynomax ultra flo mufflers...good sound, no problems at all!

silver74vette

Go with long tube if you can, they are properly tuned for better power. I put on huggers when I went to side pipes, I could not really notice a difference but I am not running a very hot engine.

Good luck.