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**MikeB** · 09-09-2019, 05:09 PM

I'd say you want a 1/2" minimum, depending on how much engine rock you have when you blip the throttle. Or install some polyurethane mounts and the engine will rock MUCH less.

Also, make sure the header tubes have a few inches clearance to brake and fuel hard lines. if not you can wrap the lines with a heat reflective material.

Here are some that use velcro, so you don't have to disconnect

09-09-2019, 05:09 PM	#8
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,663	Re: Headers too close for comfort... I'd say you want a 1/2" minimum, depending on how much engine rock you have when you blip the throttle. Or install some polyurethane mounts and the engine will rock MUCH less. Also, make sure the header tubes have a few inches clearance to brake and fuel hard lines. if not you can wrap the lines with a heat reflective material. Here are some that use velcro, so you don't have to disconnect __________________ 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!