Which heads to use?
Thread Starter
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Senior User
Joined: Feb 2002
Posts: 465
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Which heads to use?
I got a choice of some heads for my 360 motor,
c4ae-g
c8ae-h
or rebuild the d2 heads
which flow better? and how much does it cost to put hardened seats
on the old ones?
Fe power
c4ae-g
c8ae-h
or rebuild the d2 heads
which flow better? and how much does it cost to put hardened seats
on the old ones?
Fe power
Cargo Master
Joined: Aug 2000
Posts: 2,931
Likes: 12
From: SW Michigan
Which heads to use?
Dory, what heads are on the engine now ? Does it run well enough you can drive it ? Are you hoping to build one set of heads while driving on the other ? What are you going to ask this truck to do ? Drag race ? Trailer pulling ? more information please....DF
Thread Starter
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Senior User
Joined: Feb 2002
Posts: 465
Likes: 0
Which heads to use?
One head gasket is blown plus the head gets stinkin hot,
I noticed the passengerside of the hood gets hot enough to cook on... litteraly! The rest of the engine is fine, it's in my 4x4 ratbaggin' wagon.I'm sticking on a mild 4v setup also, I got three options soI might as well take the best and cheapest. There is d2 heads on the 360 right now.
Replacing lifters and rods should be done as well,correct?
If these heads happen to be in good shape and I decide to
mill them, how much can I take off?
How much milling would bump the compression about 1 point?
Machining the head would mean machining the top of the block too?
Do thinner head gaskets hold up like the thicker ones?
thanks for the info
Dory
I noticed the passengerside of the hood gets hot enough to cook on... litteraly! The rest of the engine is fine, it's in my 4x4 ratbaggin' wagon.I'm sticking on a mild 4v setup also, I got three options soI might as well take the best and cheapest. There is d2 heads on the 360 right now.
Replacing lifters and rods should be done as well,correct?
If these heads happen to be in good shape and I decide to
mill them, how much can I take off?
How much milling would bump the compression about 1 point?
Machining the head would mean machining the top of the block too?
Do thinner head gaskets hold up like the thicker ones?
thanks for the info
Dory
Senior User
Joined: Oct 2001
Posts: 479
Likes: 0
From: Miami U.S.A.
Which heads to use?
The C8ae-H & D2te-aa heads are almost identicle heads. With the D2te-aa's being only slightly better due to possible factory hardened exhaust seats. The C4AE-G heads are probably the best flowing heads out of the box. They have slightly larger combustion chambers, lowering compression a tad. They have larger exhust ports 2.26 x 1.34 vs. 1.93 x 1.34, for the Other 2 listed sets. How ever the larger exhust ports could cause problems with headers. The taller port allows for a possible misalignment, cuasing blown header gaskets. Just be sure that the headers, if any, you run align with the runners on the heads.
Scotty
Scotty
Cargo Master
Joined: Aug 2000
Posts: 2,931
Likes: 12
From: SW Michigan
Which heads to use?
On an unmodified 360, the D2s would probably be the best. The D2s and the C8s have a slightly smaller chamber than the C4s. And the 360 usuallly needs more compression. The C4s are supposed to flow the best, but your 360 doesn't need them. You can help your self by milling the deck surface of the heads .050, mill the intake side of the heads .050 as well. Don't mill the intake manifold at all. Get shorter pushrods too....It won't make a huge differance, but you will notice it. DF
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