Zz4 headers


Jul 12, 2018
What's up everyone I was trying to find out what long tube anyone was using with a zz4 lt1 engine, I had my eye on the flowtech 31104FLT has anyone had problems with these on a zz4 lt1?

abbey castro

Master Mechanic
Oct 31, 2015
Harker Hts TX
I'm using Hookers 2451-1 on my ZZ4. Not a tight fit, plenty of room between AC Airbox, steering shaft and other lines and stuff.
no banging of the tubes to make fit: PN: 2451-1
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Reactions: 1 user

Michael Bennett

Jun 7, 2018
Not sure about ZZ4, but they fit a small block in G body really well. Good access to remove starter without removing header and good oil filter access. Only had to grind a little on the passenger lower control arm mount. Very minor. My Dad had Hedmans and they were a complete nightmare. Poor oil filter access and had to loosen the header to install the starter.


Royal Smart Person
Mar 10, 2010
Small town NY
I used Hedman shorty headers on the 350/330 crate motor that I put in my wagon. Plenty of room for the filter and starter but the left side is really close to the transmission. So close I cant put the convertor/flex plate cover on.
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