Just purchased a 8 valve Roof head. Don't know anything about the history. It appears that the head has been reconditioned. The valves are new as well as the springs. Rockers are reconditioned as well.
I am looking for pushrods and a correct head gasket. As I know little or nothing about the Roof, I would appreciate any help you could provide. Dimensions and photos of the pushrods would be appreciated. A tracing of the head gasket. Also need a 3 port exhaust manifold.
I plan on installing this head on the 1914 Speedster I purchased recently advertised on the AACA classifieds. Ironically it was only 20 miles from my home. When finished it will become a stablemate with my 1915 T roadster powered by my Gallivan dual overhead cam racing engine. Not a bad pair of mates.
thnx,
frontyboy(brasscarguy@comcast.net) text-2h06 919-1949anytime
8 valve ROOF cylinder head
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
-
Dan McEachern
- Posts: 1428
- Joined: Sun Jan 06, 2019 11:08 am
- First Name: DAN
- Last Name: MCEACHERN
- * REQUIRED* Type and Year of Model Ts owned: too many. '14 touring, 2 depot hacks, 2 speedsters
- Location: ALAMEDA,CA,USA
Re: 8 valve ROOF cylinder head
It uses a regular Fronty or Rajo 8 valve overhead head gasket. Roof made two versions of the 8 valve head and they both use the same generic head gasket.
-
Kevin Pharis
- Posts: 1601
- Joined: Thu Jan 10, 2019 3:54 pm
- First Name: Kevin
- Last Name: Pharis
- Location: Sacramento CA
- Contact:
Re: 8 valve ROOF cylinder head
If a 2 intake port head, check the floor of the combustion chambers for cracks. If a 1 intake port head, check the center exhaust port where it Y’s around the center head bolt for a crack.
There are a lot of heads out there with the wrong rockers installed. Do your rockers have adjusting screws at the pushrod end…? If so, should be easy enough to figure something out. If not, you may need adjustable pushrods.
The factory 2 port Roof exhaust manifold looks identical to a Fronty T/S manifold, except the port bolts “lean” at a different angle. Here is a Roof manifold I bought years ago thinking it was a Fronty, then sold it a couple years before finding my own Roof head to match.
The single port Roof heads have vertical bolt pattern
There are a lot of heads out there with the wrong rockers installed. Do your rockers have adjusting screws at the pushrod end…? If so, should be easy enough to figure something out. If not, you may need adjustable pushrods.
The factory 2 port Roof exhaust manifold looks identical to a Fronty T/S manifold, except the port bolts “lean” at a different angle. Here is a Roof manifold I bought years ago thinking it was a Fronty, then sold it a couple years before finding my own Roof head to match.
-
babychadwick
- Posts: 713
- Joined: Tue Jan 08, 2019 7:03 am
- First Name: Chad
- Last Name: Azevedo
- * REQUIRED* Type and Year of Model Ts owned: 1926 Boattail speedster, 1912 Tourabout project, 1927 Speedster (build), 1929 Buick (future T tow car)
- Location: Henderson, TN
- Board Member Since: 1999
Re: 8 valve ROOF cylinder head
When my Dad and Grandfather originally put the speedster together they used a header that was swept and flared. I thought it was something built/adapted until I saw a nearly identical one in an original advertisement. I wish I knew what happened to it when the head was changed out for a rajo. Just thought I would mention there may be a different option than what was mentioned if you can find one.
"Those who fail to plan, plan to fail"