High compression heads?

[firerod]

I have a stock engine that I would like to put a new head on. I was going to go with the Snyder 6:1 head but now they are saying 6-8 weeks. What are your opinions on a Winfield, Lion Speed, or Thomas? My piston does not come above the block if this helps. In the future I may also run a single down draft.

[MN Stumpjumper]

I run an early Lion Head, It has power and no mechanical problems. I think the others you mentioned are good too. I prefer cast iron!

[Dusty]

I run the 5.5:1 from Snyders and have been very pleased with the increased perfomance.

[Lawrie]

What sort of cranking pressure do you get with the 5.5 head.
Lawrie

[Dusty]

Originally Posted by Lawrie

What sort of cranking pressure do you get with the 5.5 head.
Lawrie

Sorry, I can’t answer that question; however the increased performance was very apparent. Also I have put over 1500 miles on this head with no problems…just fun driving.

[Synchro909]

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Originally Posted by Lawrie

What sort of cranking pressure do you get with the 5.5 head.
Lawrie

In my tourer, which you know, Lawrie, I get more than others here have said they get - high 90's. Very close to 100 psi in each. That's higher than I would have expected from 5.5:1 compression ratio but that's what it is! Bores are 60 over, FWIW.

[Kevin - Illinois]

Just curious, what head gasket did you go with?

[Dusty]

Originally Posted by Kevin - Illinois

Just curious, what head gasket did you go with?

I used the gasket Snyders recommended for their head.

This is from Snyder's website:

"The 1932-34 model B version gasket is recommended with all 1932-34 stock heads as well as 1928-31 5.5:1 Snyder brand high compression head."

part number:B-6051-M

I torque the head to 55# and had to re-torque it several times after that. After it settled to 55# I torque to 60# and did it three times for it to finally settle in at 60#.
No sign of a leak anywhere and it is running great.

[BCCHOPIT]

I picked up Thomas... It runs mint

[TerryH]

I also have a Snyder 5.5 head....almost 4 years old, about 5,500 miles on it. Very noticeable performance increase, especially with my heavier Town Sedan. If it is important to you, the Snyder heads looks totally stock, and lots of satisfied users out there. Works really well when coupled with the Mitchell overdrive!

[Special Coupe Frank]

Originally Posted by [email protected]

I picked up Thomas... It runs mint

What kind of carb and distributor is that in the top picture ?

SC Frank

[BCCHOPIT]

Originally Posted by Special Coupe Frank

What kind of carb and distributor is that in the top picture ?

SC Frank

Willys/Jeep dist. and a Winfield carb and intake

[Aerocraft]

I have been using Snyder's 5.5 heads on the three cars that I drive since the heads became available. At first, I was using the copper gaskets but have changed to the newer style as recommended by Snyder. The heads have been a great change, not just for power, but primarily for fuel economy. Don't ask how long the break even time will be!

I was using Brumfield's prior to the Snyder's heads and I was not able to keep the heads from warping and leaking.

[V4F]

i run a 5.5 snyder head with 0.050 milled off . works great . .............. steve
i get 85# on all .................

[firerod]

I really like the looks of the Thomas head. I read that the cable won't screw into the dist., what do you do about this?

[Jason in TX]

Originally Posted by firerod

I really like the looks of the Thomas head. I read that the cable won't screw into the dist., what do you do about this?

Just had to file down one of the fins for the pop out cable spring coil thing

[Jason in TX]

I'm a fan of the Thomas head, but mine has what appears to be a Brumfield profile. Runs great. The carbs need just little more tuning but I like the power that it puts out!

[Pete]

Originally Posted by Elrod

I'm a fan of the Thomas head, but mine has what appears to be a Brumfield profile. Runs great. The carbs need just little more tuning but I like the power that it puts out!

That appears to be an original Thomas head as opposed to a Dan Price reproduction.
Dan told me how to modify one of his heads to get 10 to 1 compression.
After welding the chamber up completely you machine it to look exactly like a flathead V8 Edelbrock head chamber.
I ended up with 11 to 1.
Here's a pic of the V8 chambers..The 4 bangers looks identical.

[Niggled]

Originally Posted by Jason in TX

I'm a fan of the Thomas head, but mine has what appears to be a Brumfield profile. Runs great. The carbs need just little more tuning but I like the power that it puts out!

Are they 94 Holleys and what jet cofigurations are you using. I have a Riley 2 port head and having trouble tuning them. I've been told that the power valves are the wrong size

[Y-Blockhead]

Originally Posted by Niggled

Are they 94 Holleys and what jet cofigurations are you using. I have a Riley 2 port head and having trouble tuning them. I've been told that the power valves are the wrong size

Those appear to be Stromberg's.