Z28 Headers on a PPV
Z28 Headers on a PPV
I acquired the Z28 Tri-Y headers almost a year ago for $300, shipping included. They did not come with the heat shields. I was finally able to compare them to our cast manifolds (PPV/SS/ZL1). I mocked them up using the SS/ZL1 catalytic head pipes.
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Maurice Sheil
mhsheil@gmail.com
2011 Caprice Phantom Black 9C3
2012 Impala 9C1
1995 9C1 Caprice
1996 GMC Sierra C1500
1996 Chevrolet K2500 Extended Cab, long box, 454, 91,000 rust free miles
1974 SJ Grand Prix 455 well optioned with factory moon roof
mhsheil@gmail.com
2011 Caprice Phantom Black 9C3
2012 Impala 9C1
1995 9C1 Caprice
1996 GMC Sierra C1500
1996 Chevrolet K2500 Extended Cab, long box, 454, 91,000 rust free miles
1974 SJ Grand Prix 455 well optioned with factory moon roof
Re: Z28 Headers on a PPV
We installed the headers onto the engine. We sectioned the head pipe flanges off of the piping for the cats. we bolted the flanges to the header and then removed approximately 1-1/2" from the "height" of the pipe, just above the O2 sensors.
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Maurice Sheil
mhsheil@gmail.com
2011 Caprice Phantom Black 9C3
2012 Impala 9C1
1995 9C1 Caprice
1996 GMC Sierra C1500
1996 Chevrolet K2500 Extended Cab, long box, 454, 91,000 rust free miles
1974 SJ Grand Prix 455 well optioned with factory moon roof
mhsheil@gmail.com
2011 Caprice Phantom Black 9C3
2012 Impala 9C1
1995 9C1 Caprice
1996 GMC Sierra C1500
1996 Chevrolet K2500 Extended Cab, long box, 454, 91,000 rust free miles
1974 SJ Grand Prix 455 well optioned with factory moon roof
Re: Z28 Headers on a PPV
And now the view from the top with the heat shields installed.
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- IMG_20170513_132051897.jpg (813.13 KiB) Viewed 20817 times
Maurice Sheil
mhsheil@gmail.com
2011 Caprice Phantom Black 9C3
2012 Impala 9C1
1995 9C1 Caprice
1996 GMC Sierra C1500
1996 Chevrolet K2500 Extended Cab, long box, 454, 91,000 rust free miles
1974 SJ Grand Prix 455 well optioned with factory moon roof
mhsheil@gmail.com
2011 Caprice Phantom Black 9C3
2012 Impala 9C1
1995 9C1 Caprice
1996 GMC Sierra C1500
1996 Chevrolet K2500 Extended Cab, long box, 454, 91,000 rust free miles
1974 SJ Grand Prix 455 well optioned with factory moon roof
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- Posts: 2304
- Joined: Sat Feb 07, 2015 2:31 pm
- Location: Pearland, Texas
Re: Z28 Headers on a PPV
Nice work, there. Looks all factory-like.
Gene Beaird,
Pearland, Texas
2012 Caprice 9C1
1992 B4C 1LE Camaro
2018 Tahoe PPV (her car)
1995 DGGM Impala SS
1985 Firebird - 310 LS1 C Prepared autocross car.
1980 Bluebird Wanderlodge
And some others
Do YOU have my SPID?
Pearland, Texas
2012 Caprice 9C1
1992 B4C 1LE Camaro
2018 Tahoe PPV (her car)
1995 DGGM Impala SS
1985 Firebird - 310 LS1 C Prepared autocross car.
1980 Bluebird Wanderlodge
And some others
Do YOU have my SPID?
Re: Z28 Headers on a PPV
what did you pay for the Z28 headers ? last i remember they werent to cheap
Re: Z28 Headers on a PPV
I kept a look out on eBay for a set. Less than $300 shipped. Every once and awhile a set will pop up.
Regards,
Maurice
Regards,
Maurice
Maurice Sheil
mhsheil@gmail.com
2011 Caprice Phantom Black 9C3
2012 Impala 9C1
1995 9C1 Caprice
1996 GMC Sierra C1500
1996 Chevrolet K2500 Extended Cab, long box, 454, 91,000 rust free miles
1974 SJ Grand Prix 455 well optioned with factory moon roof
mhsheil@gmail.com
2011 Caprice Phantom Black 9C3
2012 Impala 9C1
1995 9C1 Caprice
1996 GMC Sierra C1500
1996 Chevrolet K2500 Extended Cab, long box, 454, 91,000 rust free miles
1974 SJ Grand Prix 455 well optioned with factory moon roof
Re: Z28 Headers on a PPV
thats reasonable , guess ill have to keep a eye out
Re: Z28 Headers on a PPV
Did you have to buy the z28 heat shields also or they were transfered over? Seems very obvious from the one photo that the section of tubing that connects the front cats to the manifold is much smaller diameter than the other sections used between the cats and the final pipe. This whole operation makes me think the hot ticket will be a set of coated shorty headers and have that front pipe replaced with 2 1/2"
Re: Z28 Headers on a PPV
I also bought a set of 2017 LT4 headers and cats. The heat shields that came with them were an exact swap back to the Z28 headers. FYI they are very similar in design, but, the cylinder head exhaust flange is different due to the direct injection head design, and the collector is at different angle and uses four bolts for the cats. The LT4 header also has a 2" outlet...
Yes, the pipe leading into the catalytic converter is 2" and the outlet of the Z28 header is 2" also. Depending on the outlet diameter of a shorty header, increasing the pipe size could be beneficial. Anybody have a shorty header they could measure?
Regards,
Maurice
Yes, the pipe leading into the catalytic converter is 2" and the outlet of the Z28 header is 2" also. Depending on the outlet diameter of a shorty header, increasing the pipe size could be beneficial. Anybody have a shorty header they could measure?
Regards,
Maurice
Maurice Sheil
mhsheil@gmail.com
2011 Caprice Phantom Black 9C3
2012 Impala 9C1
1995 9C1 Caprice
1996 GMC Sierra C1500
1996 Chevrolet K2500 Extended Cab, long box, 454, 91,000 rust free miles
1974 SJ Grand Prix 455 well optioned with factory moon roof
mhsheil@gmail.com
2011 Caprice Phantom Black 9C3
2012 Impala 9C1
1995 9C1 Caprice
1996 GMC Sierra C1500
1996 Chevrolet K2500 Extended Cab, long box, 454, 91,000 rust free miles
1974 SJ Grand Prix 455 well optioned with factory moon roof
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- Posts: 27
- Joined: Thu Jul 12, 2018 2:12 pm
Re: Z28 Headers on a PPV
Was this fit to the stock exhaust? I like the compact tri-y nature of the ls7/z28 manifolds. There's nothing on the aftermarket really like them, just shorties and longtubes.