( First Engine Build ) 440 , Pistons / Heads / Compression Ratio Help
 

My names Bret I am 28 years old I am a proud owner of a all original 1964 Imperial Crown Coupe. it has the 413 in it it needs the engine rebuilt, & seeing lack of pistons available to this engine and needed to be custom made its cheaper to find a 440.

I have found a guy selling 2 440 blocks, 2 cranks ( one been machined & bearings set on it) and 2 sets of heads all for $300. One block is 1970 stock bore the other is a 1969 bored .30 over cleaned & ready for assembly. he also offered to sell me a set of 8 Pistons for $100 they appear to be flat top from the picture he sent me. he said they are new been in the box like 30 years. they are TRW powerforged pistons, number on the box is 8-L2266F and says they are .30 over. By looking at the picture he sent me they look like they are Flat top pistons. or does someone need to go and notch them for where the valves land? and with these being so old would it effect me at all trying to get rings for them?? ( tbh by looking at them they look newer than 30 years but what do i know? ) & do these pistons look beat up to you guys or do the scratches on them matter at all?

Im looking at buying after market edlebrock aluminum heads cause my heads will need rebuilt and i was quoted $800 for that when i can buy aluminum heads for like $900 better to go with higher flowing aluminum ones. my question is if these are flat top pistons what cc chamber size heads i need to get 9.5:1 to 10:1 compression ratio? i will be running pump gas. I am also planning on putting a thumpr cam in it this is not a race car it needs to look good and sound good its being used in car shows and for fun cruise car on weekends and what not. I was looking at putting this cam in it.
http://www.compcams.com/Company/CC/c...csid=1497&sb=2
Will this work with a early A-727 push button transmission stall converter. Ive not been able to find the stock stall speed for these and they dont make stall converters for them, you have to change parts out to be able to. i found one guy that said the stall on these was 2000-2200 stock i dont know if that's right maybe you guys know.

I read somewhere with flat top pistons you need like 78 cc heads to get 9.33:1 compression maybe these Trickflow heads would work?
http://www.summitracing.com/parts/tf.../make/chrysler

I added pictures ( I think ) of the pistons and its box he sent me. This is my first post so I don't know how all this works yet.

This is my first ever engine build im doing alone. my dad passed away a year ago this Valentines Day, everything I know i've learned from him rebuilding my mustang engine i used to have. I hope this is posted in the right spot i couldnt find a forum for 440 engine builds or anything like that.
Pretty much i need to find out if what this guy is selling is usable to me, hopefully ill find out before he sell it. $300 seems cheap for what all id get. Idk what the heads are but they might be sellable as well as one of the blocks / cranks cause i only need one block and crank.

Thank you for your time,


Bret

My dad was also my go to person when it came to engine questions. I understand your loss oh so well I lost my dad this past November and I still catch myself picking up the phone with a question. I'm going a 408 build and ran into pushrod issues. Good luck to you!

the cam im looking at specs below.
Comp Cam's Mutha' Thumpr™ : High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
Hydraulic Flat Tappet Camshaft Grind Number = 287TH7
RPM Range = 2200-6100
Valve lift= .497/ .483
Lobe Lift = .3310/ .3220
Duration = 287/304
Duration @.50 = 235/249
Lobe Separation 107 degrees
Valve Timing = .006

And im planning on running duel exhuast, one thing i cant see to find any headers for a imperial??? i cant just buy headers that fit the 440 cause i bet i would run into clearance issues ? you running headers? I wanted to run headers to duel exhaust with a H pipe connecting them and was planning on "dumping " the exhaust right after the mufflers with tips that point down right before the rear axle. so its under the car for that nice sound.

I think that cam is going to take away too much bottom end and be a little irritable for what your looking for in a street car.... Just my 2 cents

He nailed it.

As I have said before, try to keep the duration at .050 between 222 and 225.
That cam is going to make your car a 🐖.