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**MikeB** · 06-05-2002, 05:01 PM

I recently installed a set of DynoMax Chevelle shorty headers P/N 86118. As you can see from the picture posted by 1972c10_ohio, the #1 tube comes very close to the motor mount bracket, as does the #2 tube. In fact, I had to grind 1/8" off the passenger side bracket to see some daylight. Another drawback is they have only 1.5" primary tubes, which isn't great for revs, but light years better than the small ram's horns. Finally, a couple of the machined gaskets surfaces on mine were a little narrow, meaning you have to select your gaskets carefully. I ended up using stock metal-faced Fel-Pro manifold gaskets.

The Sanderson CC3 headers posted by slammed67 are higher quality but cost $375 in the ceramic coated version. My Dynomaxs cost $215 from Summit Racing. Either way, shorties are the way to go because you don't have those unsightly Hedman or Hooker collectors hanging down near the ground on a lowered truck. I'm sure full length headers are the best performing, but I'm not a racer looking for that extra half a tenth.

06-05-2002, 05:01 PM	#6
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,665	I recently installed a set of DynoMax Chevelle shorty headers P/N 86118. As you can see from the picture posted by 1972c10_ohio, the #1 tube comes very close to the motor mount bracket, as does the #2 tube. In fact, I had to grind 1/8" off the passenger side bracket to see some daylight. Another drawback is they have only 1.5" primary tubes, which isn't great for revs, but light years better than the small ram's horns. Finally, a couple of the machined gaskets surfaces on mine were a little narrow, meaning you have to select your gaskets carefully. I ended up using stock metal-faced Fel-Pro manifold gaskets. The Sanderson CC3 headers posted by slammed67 are higher quality but cost $375 in the ceramic coated version. My Dynomaxs cost $215 from Summit Racing. Either way, shorties are the way to go because you don't have those unsightly Hedman or Hooker collectors hanging down near the ground on a lowered truck. I'm sure full length headers are the best performing, but I'm not a racer looking for that extra half a tenth. __________________ Mike 1969 C10 LWB -- owned for 36 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- converted from 250-six to roller cam 350, Vortec heads -- sold 1981 C10 Silverado LWB, 305, TH350C -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!