Machine work for heads?
Thread Starter
|
Freshman User
Joined: Aug 2006
Posts: 42
Likes: 0
Machine work for heads?
I have just completed a full port and polish on a set of D3VE heads. I will be running 2.19/1.76 valves. The following is what I think I need done on the heads. Clean, magnaflux, square it up, bronze valve guides, cut guides for valve seals, cut seats for larger valves and do multi-angle valve job, and machine for screw in studs. I will have about 11:1 compression and be running leaded race fuel. The motor is going to be used for mud racing. Did I miss anything for the machine shop? I was told not to spend the money for hardened exhaust valve seats do to running leaded fuel. Is this true? I will be running stainless steel valves.
THANKS
THANKS
Posting Guru
Joined: Mar 2006
Posts: 1,526
Likes: 2
From: fargo, nd
your valve job would last a lot longer with the hardened seats, and it would make the heads more durable... so id throw in the extra to put them in. being youre cutting for bigger valves theyre pretty much necessary. part of what youre cutting away is the factory induction hardened part, so with everything already done to them, dont you think it would be better to have them just for the peace of mind?
Last edited by darrin1999; Jun 7, 2007 at 09:26 AM.
Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
also it's not that much money to have hardened seats installed on the exhaust side (don't bother with the intake they aren't the problem) also take your guide plates in with the heads so they can mill the pedestals down the proper amount, I have seen guys machine them for the studs and not take off the extra for the guideplates and bottom out the rockers when trying to get proper valve geometry. your machinest may just take a certian amount off anyway but me and the guy that does my machine work prefer to cut them the amount of the thickness of the guideplates
also if you have your valve springs now is a good time to check to make sure the spring seats are large enough for them and have them cut if neccesary.
also if you have your valve springs now is a good time to check to make sure the spring seats are large enough for them and have them cut if neccesary.
Thread
Thread Starter
Forum
Replies
Last Post
brit_wheels_fan
1948 - 1956 F1, F100 & Larger F-Series Trucks
4
Feb 4, 2010 11:19 PM
gungho351
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
21
Jan 2, 2009 11:11 AM
C-Leigh Racing
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
7
Nov 14, 2008 11:01 AM
