Reamer! Speaking of head porting... - ZR-1 Net Registry Forums

Paul Workman · 03-06-2009

Azz ya know, I'm in the middle of a top end DIY porting job. My heads are not getting the full treatment this year (gotta have something to do next winter, right?), so I'm just going to port the first 3" or so, tapering down from 36mm to stock diameter at the valve bosses. And, being that the heads are staying on the engine (read: PIA to get to with a die grinder and burr), and after looking at and measuring a "few" monster LT5 performers, it occurred to me a tapered reamer might be the way to go - certainly more precised and maybe even quite a bit faster w/ little danger of having an "oops" moment?

Yesterday I got a quote for a reamer ground to spec; $395 (call it $400) for one, and it goes down to $240 ea. for 3. Anyone interested in splitting the cost, or mebby renting a reamer, or mebby a "bulk purchase"? I'll post pix later.

Any thoughts?

P.

03-06-2009	#1
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,493	Reamer! Speaking of head porting... Azz ya know, I'm in the middle of a top end DIY porting job. My heads are not getting the full treatment this year (gotta have something to do next winter, right?), so I'm just going to port the first 3" or so, tapering down from 36mm to stock diameter at the valve bosses. And, being that the heads are staying on the engine (read: PIA to get to with a die grinder and burr), and after looking at and measuring a "few" monster LT5 performers, it occurred to me a tapered reamer might be the way to go - certainly more precised and maybe even quite a bit faster w/ little danger of having an "oops" moment? Yesterday I got a quote for a reamer ground to spec; $395 (call it $400) for one, and it goes down to $240 ea. for 3. Anyone interested in splitting the cost, or mebby renting a reamer, or mebby a "bulk purchase"? I'll post pix later. Any thoughts? P.