The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 47-55.1 Eliminate draft tube options

**TX3100Guy** · 12-15-2023, 08:19 PM

I have a 261 cubic inch straight six out of a 1959 Chevy. What options are there to eliminating the road draft tube? I've heard about using a grommet and a modern PCV valve with tubing to the intake manifold, but worry that the small tubing may create back pressure on the engine. Thoughts?

12-15-2023, 08:19 PM	#1
TX3100Guy Senior Member Join Date: Mar 2022 Location: Lucas, TX Posts: 459	Draft tube, oil leak, cracked end cap, pulled engine I have a 261 cubic inch straight six out of a 1959 Chevy. What options are there to eliminating the road draft tube? I've heard about using a grommet and a modern PCV valve with tubing to the intake manifold, but worry that the small tubing may create back pressure on the engine. Thoughts? __________________ 1953 Chevy 3100 - 5 window 1/2 ton pickup My 1953 Chevy Work-In-Process Photo Gallery "I don't have a carbon footprint, I drive everywhere." Last edited by TX3100Guy; 01-23-2024 at 11:41 PM.