• 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
BREAKING VALVES
#1
I'm in overhaul mod and have seen afew comments about breaking valves.. I have old receipts from previous owners for new valves, and engine old cam was pretty wild. I am installing tamer cam with new springs and lifters. should I still worry about the valves breaking? Not doing this a second time.

Alan L.

[Image: 1_30_09_13_10_12_32.png]
Alan L
  Reply
#2
Stock valve, YES YES AND YES.
  Reply
#3
Use single groove valves and keepers. After oil starvation, broken valve is the second most common cause of Cleveland death.

Chuck
  Reply
#4
X3,a good quality 1pc valve with single groove keepers.

Jeff T.

Low buck, touring style, '73 Convertible "rolling restoration", 351c, 2v heads with a shave and a haircut, Performer intake, Holley 650(ish), roller rockers, screw in studs, guideplates, stainless valves, Duraspark / Motorsports MSD, T-5 conversion. 1-1/8" front, 3/4" rear swaybars KYB shocks and some home brewed subframe connectors. Future plans; JGC steering box, Cobra brakes and... paint, interior, etc.

When I die I want to die like grandpa, peacefully in my sleep... not screaming, like his passenger.

[Image: 1_12_09_14_10_15_11.png]
  Reply
#5
X4 May be you already have them if the PO used a radical cam,they already new this.You need single groove locks / va;ves.

[Image: 16kuyc0.jpg]
  Reply
#6
current valves are 3-groove keepers

[Image: 1_30_09_13_10_12_32.png]
Alan L
  Reply
#7
I cant remember if you have 2v or 4v but I had these in the previous motor and they are excellent. The 4v are about $110 a set of 16
http://cgi.ebay.com/ebaymotors/STAINLESS...ccessories

[Image: mustangnight010.jpg]
1972 Mustang Convertible 351C 4V
1966 Ford Galaxie 7 litre-4speed

Jorge
  Reply
#8
Ive had the stock 3 groove valves in mine for the last 7 years and they have done fine no problems, but I have a really small cam.

[Image: 25rnz1y.jpg]

~Buddy
  Reply
#9
Widowmaker00;11110 Wrote:Ive had the stock 3 groove valves in mine for the last 7 years and they have done fine no problems, but I have a really small cam.

I got away with it for along time also.I was lucky when one of mine broke I was in the pits at the track.I was warming the car up and reved the engine to clean it out.My intake valve on #5 let go.I had to sleeve that cylinder and clean the piston top up,broke roller rocker,springs,etc...I am just glad I was not at speed,would have been alot more damage.


Attached Files
.jpg   1973_Ford-43.JPG (Size: 51.28 KB / Downloads: 20)

[Image: 16kuyc0.jpg]
  Reply
Share Thread:  


Possibly Related Threads...
Thread Author Replies Views Last Post
  429 valves and petrol grade mustangandy 5 188 09-07-2018, 03:25 AM
Last Post: mustangandy
  429 valves springs spacer Fabrice 6 313 06-10-2018, 02:43 PM
Last Post: Fabrice
  What size valves? Omie01 6 1,131 07-29-2015, 11:17 AM
Last Post: jbojo
  heads/valves Omie01 5 940 03-01-2015, 05:36 AM
Last Post: Omie01
  Question for those who have used Alex's Parts 4V valves cudak888 20 3,736 09-15-2014, 05:54 PM
Last Post: 73vertproject
  Cleaning heads and Valves Darren 72 2 679 02-03-2013, 01:25 PM
Last Post: MotoArts
  351 c valves nosdelacruz 3 713 11-27-2012, 03:54 PM
Last Post: nosdelacruz
  One-piece Valves 73vertproject 29 3,651 06-08-2012, 07:38 PM
Last Post: 73vertproject



Users browsing this thread: 1 Guest(s)