McJacks Headers
Thread Starter
Melting Slicks
Joined: Feb 2004
Posts: 2,039
Likes: 105
From: State of Confusion!!!
2018 C2 of Year Winner
McJacks Headers
Has anyone used these headers?? They are hand built, and look like a nice piece.
http://www.vetteheaders.com/servlet/Detail?no=1
I was wondering what gains, if any, you would be getting with short tubes? My stock manifolds look decent, but I am considering headers for performance gains. Long tubes mean a new exhaust, which could be in the cards as well, but I'm not real sure about ground clearance issues they may present.
http://www.vetteheaders.com/servlet/Detail?no=1
I was wondering what gains, if any, you would be getting with short tubes? My stock manifolds look decent, but I am considering headers for performance gains. Long tubes mean a new exhaust, which could be in the cards as well, but I'm not real sure about ground clearance issues they may present.
Le Mans Master
Joined: Oct 2007
Posts: 7,410
Likes: 949
From: Tennessee/Rhode Island
Has anyone used these headers?? They are hand built, and look like a nice piece.
http://www.vetteheaders.com/servlet/Detail?no=1
I was wondering what gains, if any, you would be getting with short tubes? My stock manifolds look decent, but I am considering headers for performance gains. Long tubes mean a new exhaust, which could be in the cards as well, but I'm not real sure about ground clearance issues they may present.
http://www.vetteheaders.com/servlet/Detail?no=1
I was wondering what gains, if any, you would be getting with short tubes? My stock manifolds look decent, but I am considering headers for performance gains. Long tubes mean a new exhaust, which could be in the cards as well, but I'm not real sure about ground clearance issues they may present.
Drifting
Joined: Aug 2005
Posts: 1,682
Likes: 3
From: League City TX
Performance wise they probably arent much better than stock.
Of course thats partially because big block Vette manifolds arent as horrible as some others.
They do look to be nice pieces though.
Of course thats partially because big block Vette manifolds arent as horrible as some others.
They do look to be nice pieces though.
Le Mans Master
Joined: Oct 2007
Posts: 7,410
Likes: 949
From: Tennessee/Rhode Island
There is definitely a performance increase since the headers flow better with less restriction than the stock manifolds but then again full length headers really only show big gains on engines that are highly modified. I put Mcjacks on the car after I already had the 2.5in duals and Monza turbos and the exhaust sound got noticeably louder just with the Mcjacks which tells me the exhaust flow increased from the headers only. In addition, the water temp is lower now which tells me that there is better exhaust scaveging from the cyclinder heads. Not having the AIR ports interfering with the exhaust flow also probably helped since the AIR ports stick way into the head on the stock manifolds. Just my real world experience, not hypothetical! PS-the engine pulls better over 4,000 RPM as well.
Le Mans Master
Joined: Oct 2007
Posts: 7,410
Likes: 949
From: Tennessee/Rhode Island
The cost of the McJack's certainly made me pause before buying them, but I waited so long for someone to make a shorty header for the vette that would hook up to the stock type exhaust system with no raod clearance issues and engine fit problems, I figured they were worth the money. They are unique as headers go.
Thread Starter
Melting Slicks
Joined: Feb 2004
Posts: 2,039
Likes: 105
From: State of Confusion!!!
2018 C2 of Year Winner
I don't think that is too bad...for ceraminc coated inside and out???I think it would be a bit more expensive to build your own, and probably not as nice to look at!!!
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Advanced
Joined: Dec 2004
Posts: 58
Likes: 1
I have these headers on my C3 and there is definitely a performance increase. These also hook up exactly like the cast iron manifolds, and to the stock exhaust. Yes they are ceramic coated from the inside out. A very nice work of art. My friend who has a 62 just ordered a set of McJacks Ramhorn headers with the alternator bracket built in like the original. I guess he just started offering these too. Very nice product and real personal service too.
Le Mans Master
Joined: Jan 2008
Posts: 7,155
Likes: 44
From: If you wanna live life on your own terms, you gotta be willing to crash and burn Florida
Be careful I bought some shorty's for my C5, they ended up sending me Pacesetter. Not only that they were the wrong ones, he sent me 97-99 vette shorties, I have an 01. The exhaust shop realized this after they bolted them up and the Y pipe was not even close. He took back the headers but would not reinburse me for the labor. Be careful.
Le Mans Master
Joined: Oct 2007
Posts: 7,410
Likes: 949
From: Tennessee/Rhode Island
Be careful I bought some shorty's for my C5, they ended up sending me Pacesetter. Not only that they were the wrong ones, he sent me 97-99 vette shorties, I have an 01. The exhaust shop realized this after they bolted them up and the Y pipe was not even close. He took back the headers but would not reinburse me for the labor. Be careful.
