OK so i'm building a 445 stroker with 7 cc flat top pistons. My machinist ended up taking more surface off the head then originally expected so no my combustion chambers are smaller (66 cc). When i do the dynamic compression calculations i get 8.86 dynamic with the cam installed 4 degree advance of center line like it was designed or 8.58 with the cam installed with no advance. this is the lunati 62004 cam.

From my understanding 8.5 is the absolute limit on 93 oct at 170 degrees. i know quench height can make a difference as well and my quench is .020 and i will be running a 160 degree thermostat. I was planning on running a street demon 750 carb but have since decided to go to a fitech fuel injection. SO will i be alright at that setup or do i need to change something?

Also when i place my heads on the block over the studs with the gaskets in place, my intake manifold is resting on the overhang from the head gasket and doesn't seem seated very well. Do i trim the gasket, trim the manifold, or just bolt it up and let it bend the gasket down?

 

Paragraphs matter.

Your intake manifold fitment issue seems to be gaskets that need to be trimmed? Is that it?

 

Sorry for the lack of grammar and proper composition. I was typing on my phone with greasy ford hands. I believe the gasket does need trimmed but having never worked on an FE before, I did not know if the head gasket protruded into the lifter valley for some special reason.

 

Epic manifold setting thread. Short version: Check for true on intake and head surfaces, check for warping as well.

https://www.ford-trucks.com/forums/1...ilt-390-a.html

 

What heads are they? And what is your static compression? Doesn't sound good, sounds to me like you will need to change the Pistons, cam or heads.

See my FiTech thread when you get started, it's in the fuel systems section, tell your friends

 

they are the d2te heads. static compression is 11:1. to keep from blowing up my engine or spending a whole bunch more, I may just get a larger cam.

 

Head gasket protrudes into the lifter valley to hold the valley pan down.
Once installed, or if you choose to not use the valley pan, just knock the edges of the gasket down with a hammer.

I used a valley pan, but I did so mostly because I was running a pcv in the rear of the intake and wanted to minimize the oil slinging in that area.

 

depending on the heads and timing i think you'd be okay with 93 octane, iknow most guys would say av gas or race fuel, i think ford ran the 351C at 11:1 on 93 octane, either way be careful.

 

I think i would be ok but but for $135 i may just go ahead and step up to the next size voodoo cam.

 

A lot of states only have 91 octane. My 428cj, 10.6:1, is OK on the 91 as long as you don't get too aggressive with the timing.

 

How much did they take off the heads, I was thinking d2te heads where 72-78 cc before any milling was done.

 

I'm not sure how much they took off. He said it was just enough to polish the surface to get a better seal. I thought the same thing when i ordered my parts as well.

I had already dropped everything off at the machine shop so they could start working on it. He had told me 30 over pistons would be fine since the cylinders weren't too bad and that head cc wouldn't change much so i ordered the higher compression pistons.

But now that i have evrything back I have leaned that the d2te heads could be anywhere from 68-72cc from the factory. and according to my math, .002 shaved would be 2 cc's so it wouldn't take much.