So I have around $1000 to spend.
And I'm getting head work done.

Thinking bigger valves the 1.77 and 1.44 valves.
Going to shave the head for higher compression 9.5 : 1
It's already been ported and polished.
Assuming that the head is in good condition what else should I do, that's worth it...?
Guessing their is no point upgrading springs etc as the engine won't turn over 6000 etc.

cheers

Bowl blending? I made good headway in that area on my head
competition vlaved job for those bigger valves doesn't sound like much else to do if it's already been ported and polished.
what other modifications to the motor are you doing? A more aggressive cam would probably help the head work go to good use.
Kev

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How much do you think the bowl blending will cost...?
Main goal is to make sure it's running on unleaded fuel so that's what this is about it just happens that it's not much more expensive for the other things.

Once I get it back I believe a 500cfm edlebrook 4bbl carb will be going into the mix.

last update will be a more aggressive cam yes, not sure if I am going to go for higher RPM or for more torque.

Then that's it for the engine should be good, and should hit around 225 HP. It's similar to a build that was posted recently in a magazine thing...Doug helped out on that one.

Hardened valve seats................goes without saying really.



Edit: just read your second post there Brussel, you'll need the valve seats done to run on unleaded. It's almost mandatory with head work these days.

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62 Valiant, 225cid Slant 6/PB 904 with lots of good bits

http://www.moparmarket.com/readersrides ... user=SV162

Sorry should have mentioned, will be getting the appropriate guides valves hardened seats etc.

Total cost I think quoted for
Making the car unleaded compliant, including bigger valves.
shaving the head to get higher comp
Around $700.
Perhaps the bowl blending isn't that important...?

if just doing the bigger valves, I would shim the stock springs some [vsi's]

another 10 lbs over stock is good....

or for around $50 you can get some 340 springs and be ready for any future cam change.

just a thought

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leaving you so far behind you need a time machine to catch up

engine builder 1.70 intake,1.44 exhaust valves seem like a good buy.and you should buy new valve springs to match the cam you intend to use.I'm not much of a fan of mickey-mouse shimming 100,000-200,000 mile OEM springs to increase the RPM range.

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V8?? We don't need no stink'n V8!!

Do the porting yourself

http://www.scribd.com/doc/9572222/head- ... -abrasives

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

me neither, but at least he's aware of what you need when using a bigger heavier valve that will also slightly increase the rpm range=more spring pressure.

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leaving you so far behind you need a time machine to catch up

ya the bolw blending is a piece of cake at least i thought so specially bigger valves are gonna need unshrouding, and when the machine shop cuts for the bigger valve their will be like a cliff all the way around the bowl if that makes sense?

Kev

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Go from this



To this




Richard

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Part of Tyrde-Browne Racing

Wow, you've even switched the intake and exhaust valves............

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

emsvitil

Yes and it even runs backwards

Richard

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Part of Tyrde-Browne Racing

emsvitil, that's for use in countries south of the equator, the swirl changes direction there...

Olaf.

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Aspenized

A few years ago after porting my head, I than had oversized valves installed. The machinist blended the larger valve cut without asking, which took the pressure off of my hand not to hit the fresh oversized valve seat with a sanding cone…

Bowl blending is just a rounding & smoothing of that sharp edged transition between the underside of new larger cut, and the bowl. It doesn’t take long, have him do it, save that freshly cut seat from a missplacement of the die grinder.

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67' Dart GT Convertible; the old Chrysler Corp.
82' LeBaron Convertible; the new Chrysler Corp
07' 300 C AWD; Now by Fiat, the old new Chrysler LLC