Posted this in the Engine section with no responce thought I mite try it here?
Has anyone used the 60499 high compression heads with TRW L2399F-60 pistons?
I am going to start building my 468 motor soon using these parts and was wondering if anyone had any problems or had to use special parts or machine work with this combination?
They are 100cc chambers so I will have close to 10.3-1 cr, should work ok with a CC-XE284.
Just thought I would ask?
Thanks for any input or advise.
T.C.

I put a 468 together with 2399 pistons. Had block milled. Bolted on edelbrock 6045 heads with felpro gasket 1027. That got 10.1 compression with a 110cc head.

Thanks for the reply BB485, I was a little worried about the 1.5 degree angle mill and the .095 dome of the 2399 pistons?
Edelbrock said to use only closed chamber pistons with the 60499 head?
The compresson sould be 10.32-1 thats what the TRW chart list for 100cc, I think will be fine. Just dont know if the pistons will hit the head or valve.

T.C.

Put a strip of model clay on top of piston. Then use old head gasket. adjust valves on that cyclynder and see how thick the indentation is you want a .100

I wish E-brock would make the 60499 heads with 85 cc chambers, BUT still be able to use stock length pushrods and valves b/c then the old cheap, flat-top piston, 454 P/U motors we grab onto could make right at 10.0 to 1 CR. using .039" composite headgaskets.

I don't know what the thinnest headgasket is that can be used with Aluminum BB heads, but if they would make a .020" thick one, we would get a 10.4 to 1 CR. which I think should still allow use of pump gas if a decent cam is used.. And this would be even better, imho....

pdq67

That would have saved me the price of pistons as I had flat tops to start with.
Just bought the 2399's for the .095 dome to get me to 10.32-1 my cam calls for at least 9.5 if I remember rite? CCXE284, thanks for the tip on the clay.
T.C.

TC, I have the exact engine you are describing sitting on a engine stand in my garage. #60499 Edelbrocks with #2399 TRW slugs under them. The cam in the engine is a Crane Hyd. Roller with .612/.630 lift. My engine builder(who is very professional) says I have plenty of clearance on the valves and says the motor, in his words "...should be a brute.."
10.3:1 compression is correct and the 1.5 degree angle mill actually helps the intake seal better. I am running the Performer RPM and didn't even bother with port matching to the heads.
However, DO NOT USE the springs that came on the Edelbrock heads without having the install height and spring pressures checked to make sure they are compatible with your cam.
Go to the Comp Cams website and compare the springs suggested for your cam with what actually comes on the Edelbrock heads....

125 lbs @ 1.975" Closed
310 lbs @ 1.475" Open
Coil bind @1.160"

...feel free to email me with your comments or questions. Good to hear I'm not alone with the idea to use these heads!

wow live down the street from you and have never seen any 6045 on your car ?????

TC, pretty sure the L2399's are closed chamber pistons to start with.

SilverSS, What deck ht and head gasket did you use. The way is works out, angle milling actually does not change piston/valve clearance by much, most of the cutting is done at the outside of the head where the bigger volume of the chamber is. L2399's will sit down about .020 in a stock block, add to that the .041 head gasket and you only have to deal with a potential .035 of protrusion into the combustion chamber.

Thanks for the replys:
I bought the 2399's because they are the ones that are used in the BSE setup with the 215 GM heads.
The 215's have a 106cc chamber, the Edelbrocks have a 100cc chamber.
I have looked at both and cant see any difference in the chambers size or shape?
Just different metals alum./iron, I had heard before there was no problem with this setup, but I thought I would try to find someone who had it assembled and running?
thanks T.C.

You probably can't tell the diff. between them b/c it will be a "depth-contour" diff. thing...

That's why even with the stock heads we all need to cc the suckers so we really know what they are!!

pdq67

PS., it is said that the great big no quench flat chambered smog heads are actually down around 113 cc's b/c the valves are located more shallow if compared to a -781 or -049 with more quench flat at usually 118 or so..

I did CC the 215's and they were 105,106 I havent done this with the Edelbrocks yet.
But I will before I assemble the motor, I am more conserned with the piston/valve clearance than anything.
I guess if the 2399 pistons work with the 215 heads they will work with the Edelbrock 60499's
T.C.

I wonder how much the angle mill (1.5 deg) will effect header fit.
I can't wait to hear how it runs. That could be the hot ticket for a great street motor.


Good luck with it and let us know how it works out.

I talked to Edelbrock about the header and intake fit.
They told me all the port placements were the same as OE heads?
I thought about that also, intake leaks and header dings.
T.C.

Was wondering if you've had a chance to cc those heads yet??

Guys, if anyone wants a set of these high compression heads along with a complete valvetrain setup, I've just put mine up for sale on the FOR SALE board.

Click here...
http://www.chevelles.com/cgi-bin/classifieds/classifieds.cgi?db=allyears&website=&language=&session_key=4132982373028d4c&search_and_display_db_button=on&db_id=3111&results_format=l ong&query=retrieval&exact_match=on (http://www.chevelles.com/cgi-bin/classifieds/classifieds.cgi?db=allyears&website=&language=&session_key=4132982373028d4c&search_and_display_db_button=on&db_id=3111&results_format=long&query=retrieval&exact_match=on)

Thats a hell of a deal.

I'm interested and within driving distance.

Let's see if i got this straight, your selling the heads, roller cam, lifters, pushrods and head bolts for 1600.

I think im dreaming.

Sorry mods


ill do the email thing.

I finally cc'd those Edelbrock heads #6049.
I used a giant seringe that heald 50cc's , used Marvle Mistery oil and I filled it twice.
Filled the chambers to the top, checked 4 of them,they were all to the top, so I would say they are very, very close to 100cc's.
Later T.C.

I can't wait to hear how it runs. When do you think that'll be??

Not really sure as Im having clearance ishues with the intake valve and the piston at about 10 degrees ATDC.
I only have .066 clearance with a .051 head gasket, so I'm gonna have to do one of three things.
Fly cut the pistons $$$/ cut the seats or the intake valves $$$ or change to a lower lift cam $?
I need to get at least .080 clearance.
Somehow have to find about .025?
I'll keep ya posted.
T.C.

Not really sure as Im having clearance ishues with the intake valve and the piston at about 10 degrees ATDC.
I only have .066 clearance with a .051 head gasket, so I'm gonna have to do one of three things.
Fly cut the pistons $$$/ cut the seats or the intake valves $$$ or change to a lower lift cam $?
I need to get at least .080 clearance.
Somehow have to find about .025?
I'll keep ya posted.
T.C.