D8 cylinder head...and milling it

[Crosley]

I have the Schjeldahl's book..

My cylinder head is off a 1978 Fairmont 200cid engine

It mentions to mill the head .075 for compression on a 200cid block.

I am just asking IF this amount of milling holds true ? The car is not a daily driver , only a play - run the snot out of it car.

Pistons in the engine are fresh .030 over cast with small dish on the piston top.

 

[Patrick66]

i would just be sure to cc it first to make sure it hasn't been milled before, what kind of comp. ratio are you going for.

 

[mugsy]

When I had my engine rebuilt, I had the machine shop take 0.030" off the block and about 0.040" off the head to get the 9.3 CR I was looking for. But I arrived at this numbers by measuring the cc's of the head with a graduated cylinder and the deck height with a dial indicator. Please don't go blindly milling the head; measure and use an on-line compression calculator to remove EXACTLY the required amount. If too much is removed and the CR is too high, thar ain't no goin' back!!

Also, if the head/deck is milled make sure you install an adjustable rocker arm kit.

tanx,
Mugsy 8)

 

[grocery getter]

Tony,
Dealing with 30 + year old parts, there are a lot of variances.
get the machine shop to cc the head. my machine shop included it in the
deal. it's really the only way to do it right.

 

[Crosley]

This Fairmont was a 51k original car. A friend bought the car , sold me the power train. He installed a 460 - C4 combo into it.

The head is very clean , in good shape to indicate the mileage of 51k is probably correct.

8)