All Small Six My Falcon's First Upgrade (Cylinder Head)

[jroypdx]

So long term this car will get a V8, but I decided that I want to play with the inline 6 a bit first.

My 61 Falcon currently has a 1978 200ci block and a 170ci head from a 1961 (could be the original, I don't know).

My plan is to machine the log to accept an adapter so that I can run the Holley 2300 flanged Sniper kit. So I bought this to do the work on.

This is a 200ci cylinder head from a 1980 engine. It should have the largest log. Now I'm trying to decide what to do with it, maybe just straight rebuild. Should I shave it down some to give it a compression bump? I don't mind running premium if it means I get a few extra horsetorques.

What is the static compression ratio of the 200?

 

[Otto]

Greetings from Happy Valley!

My early van's 200 has a D8 large log head. It got a bit of amateur port work and the carb hole enlarged for a 2 bbl carb w/ adapter. Runs pretty well now.
Having your cylinder head machined would certainly increase the compression ratio. How much? I don't know, but there are smart folks here that could answer that for you!

 

[jroypdx]

Greetings from Happy Valley!

My early van's 200 has a D8 large log head. It got a bit of amateur port work and the carb hole enlarged for a 2 bbl carb w/ adapter. Runs pretty well now.
Having your cylinder head machined would certainly increase the compression ratio. How much? I don't know, but there are smart folks here that could answer that for you!

Milwaukie here!

 

[bmbm40]

So long term this car will get a V8, but I decided that I want to play with the inline 6 a bit first.

My 61 Falcon currently has a late 70's 200ci block and a 170ci head from a 1961 (could be the original, I don't know).

My plan is to machine the log to accept an adapter so that I can run the Holley 2300 flanged Sniper kit. So I bought this to do the work on.

This is a 200ci cylinder head from a 1980 engine. It should have the largest log. Now I'm trying to decide what to do with it, maybe just straight rebuild. Should I shave it down some to give it a compression bump? I don't mind running premium if it means I get a few extra horsetorques.

Yep largest log like 1420 cfm, big valves all the good stuff. Good find. You could machine for the adapter or mount a Carter BBD 2v or Rochester 2v, with adapter right to the carb mount it has now. Nice shipping crate.

 

[DON]

Greetings from Happy Valley!

My early van's 200 has a D8 large log head. It got a bit of amateur port work and the carb hole enlarged for a 2 bbl carb w/ adapter. Runs pretty well now.
Having your cylinder head machined would certainly increase the compression ratio. How much? I don't know, but there are smart folks here that could answer that for you!

Happy Valley, Newfoundland???

 

[jroypdx]

Happy Valley, Newfoundland???

Oregon

 

[jroypdx]

Yep largest log like 1420 cfm, big valves all the good stuff. Good find. You could machine for the adapter or mount a Carter BBD 2v or Rochester 2v, with adapter right to the carb mount it has now. Nice shipping crate.

The guy that sold it to me made that. I was impressed too! 97lbs was a spendy package to ship!

 

[Otto]

Happy Valley, Newfoundland???

Newfoundland doesn't sound nearly as happy

 

[DON]

Sorry for the sidetrack, I have a brother in law there

 

[awasson]

Nice score. Big valves and big log to help get fuel and air into your engine. Really nice packing job too.

You're going to want to CC that head or have someone CC it for you. I'd recommend doing that so you know where you're at in terms of the compression ratio.

Use the calculator at UEM. I've been recommended it by the knowledgeable Ford 6 guys here: https://uempistons.com/p-27-compression-ratio-calculator

Being cast iron and running on pump gas, you don't want to have too high a compression ratio. I don't know what compresion ratio guys are running on the street these days. I'm planning to run about 9.5:1 with my large log head. I think that's a reasonable compression ratio for a street car.

Also, if you have the adjustable rocker arms from the 1961 head with the bucket push rods, use them. It'll give you all the adjustment you'll need to dial it in after you shave the head.

 

[TrickSix]

Howdy! Make sure you check the head for cracks. I've seen a few of that edition head with cracks around the EGR port below the carb inlet.

 

[NickC]

The sniper 2300 is a great addition, so is machining the head to allow for full air flow. Both are big projects, take you time with them! Unless you machine the head yourself, it is going to be pricey, it is hard to find people anymore that do this kind of work. I recently did this with a table top router and multiple 6mm endmills, taking tiny cuts. It took many weekends but I just let it run (g-code) while I worked around the house. Good luck!