Hello,
I want to build a period correct motor for my 67 R/T. I found a C 440 HP stamped motor w/ correct date and also have the correct intake and 4327 Carter carb. The motor has caps only and nothing else. I will need to purchase 915 heads and all other necessities. I want a little more pop out of it than stock. A little cam is ok, but still want to run the power brakes and operate at a cool temp, start w/o issues. I do not race. This is a street car. Looking for about 425HP, give or take.

What will I need to build this, and how much will it cost, assumming block will need .030 over... The internals do not have to be correct. I want a quality crank, pistons, etc.... Don't have to be orig. I need to use the factory intake to fit the orig. air cleaner under the hood....

THanks, Pete

The easiest way to build streetable horsepower is with more cubic inches. Throw a stroker crank at it with a decent, but mild cam and you should be able to accomplish your goals. The carb may be a little on the small side, though.

425HP out of a 440 is not that hard to do and it won't be a radical build at all , I'm building what you are asking about right now . You'll want to have some porting done to the heads , build for quench which is easy given your head choice .

Price , silly question , all depends on the level of parts you use , local labor rate or if you ship your block and heads cross country to have someone else do it , could cost 4k , could cost 10k ...

i have a set of 915 heads im lookin to get rid of. pm me for info

I would have the heads ported and choose your cam based on whether or not you are going to run headers(will help you reach your power goals easier) or manifolds.
I would think you could run a performer or ch4b intake and clear the hood.Either will make hp over the stock intake.
You wont need a radical cam with the right combination of parts.

I like the Crower 32242 cam heads ported (send them to Dwayne Porter)and 2355(sixpack)type pistons and stock LY rods (resize with ARP hdw)and the Edelbrock intake above with a Edelbrock 800cfm Thunder series carb and TTI X pipe with dynomax ultraflows. For a street car it will have all the power you need and idle like stock.

If you want it all stock appearing, get the compression about 10.5, get a custom roller cam, and have the heads ported and send the intake out to Hughes for modification, and I'd think you'd be able to get it done. Factory intake and exhaust manifolds are limiting you the most.

It is better to have a performance goal (e.t and mph)as you have a way of measuring in a meaningful way if you reached your goal. You should go to the track and run your car, otherwise you'll never really know what you have. You don't have to race.

You should try to get good quench. To do this with 915 heads, you'll need a dished piston. Presuming a small cam, a CR of 9.5 is as high as you should go if you want to run pump gas. Factory rods and crank are fine with a good professional rebuild for the rest of the short block

You should use well prepared ported heads.

Use a mandral bent 2.5 exhaust system.

Have a professional pick for you a custom ground cam shaft.

The 4327 carb and the 178 intake are a good choice for stock, but they are your weakest link in achieving higher hp levels. The next step up would be to have a professional work the intake, or you could substitute for it a CH4B which is stock-like. You should be able to run your stock air cleaner, but it will be close. You'll need to check and maybe do some slight massaging.

I cannot say if this is 425 hp, as hp numbers are a little mystical in how they are used and viewed, but the performance will be noticably improved over original factory stock.

Thanks for the input. I now have the Edelbrock Performer RPM, but would have to go to the Regular performer, I guess. I have the Eddy 750 on my current motor, but it is garbage..I just bought the date correct stock steel intake and have been told that it is equal to the Performer. I guess that was wrong. What does it run to have it machined to flow? Will a Holley Avenger 770 work? Will it bolt up to the stock intake? I didn't think so and I am not sure I can clear the hood w/ adapter. So all of these parts are available to purchase, i guess... I have no engine building experience and will submit your recommendations to the builder.

Thanks, I found some 915 heads local..

I love the QQ1 67 Charger. It matches my Coronet... In the for sale section is a 67 L code Charger with the 440 HP motor and all original stuff. I was going to buy it and swap my 440 w/ it, but the date code is a month off.

Thanks! Love this site! Was going to my car's first show tomorrow in Rockville, MD, but I am sure we are rained out.. Great show w/ all years and makes.. About 400 cars..

The cost for porting an iron intake is'nt worth it.Unless you are F.A.S.T. racing I would'nt bother.
You can easily sell your rpm intake.Performer's are available reasonable used.The old Edelbrock CH4B is an excellent intake and will accept the holley carb.
The 770 street avenger is an excellent choice for your motor.
Pick up whichever intake you decide to run and send it to Hughes Engines and have them deep match port it.Or buy a new one from them already done.No need to go crazy with equalizing flow with what you are doing.
Does the iron intake flow the same I doubt it but I have no proof to back it up.

I built a similar engine for my 67 Belvedere a few years ago. 67 440 .040 over, gasket matched 452 heads, 9.5 to 1, Weiand 8009 intake, M.P. 280 .474 cam, made 430 honest horsepower.