T-REXblown409
Active Member
We built a set of headers in my shop to fit my 57' Bel Air it was harder than I thought.For a 409/472 Blown.
Picked up 409 short block from machine shop, Venolia Pistons are zero deck, have .184 I and .206 E valve to piston clearance, degreed the cam with 4* regard, I don't want any more horse power off the line, the tires are going to burn anyway, in 1500 lb dragster, used windage tray, and welded oil pick up to oil pump. I had the head done else where, but this machinist showed me the valve guides should have been replaced , He is doing pocket porting and now will replace valve guides, so don't have heads. I have some great pictures of the pistons on big block rods. Will try and show pistons later.
Still looking for blower manifold for 409.