New:
-Ferrea EVO 8 dual spring kit with titanium retainers $900+
> S10084 dual springs, E11052 retainers, SL1041 seats, K10035 locks
-Supertech 2mm oversize nitrided intake valves $150+
-Supertech 2mm oversize inconel exhaust valves $160+
-Supertech valve guides $100
-Supertech viton valve stem seals $30
-Titanium exhaust studs $100+ (Speed Factory IIRC)
-Ported intake and exhaust
-5 angle valve job.
= = = = =
Best part prices I could find totaled over $1400
NO cams, gears, lifters, rockers, HLA
Located Germantown, MD
Will ship at cost
Can bring to Haltech World Cup Finals in Maryland
= = = = =
I bought this for my new short block, but couldn't use it because of clearance issues with 9.0:1 pistons.
I lightly torqued it to my block on a engine stand to check piston clearance only.
Let me know if you want additional pics
Killer deal!

















B

Bump...still have this

A few more pictures from when I was seeing if it would work on my build

Bump for price drop. I love looking at this on the shelf, but it's too nice for art work!

holeshotmoe said:

New:
-Ferrea EVO 8 dual spring kit with titanium retainers $900+
> S10084 dual springs, E11052 retainers, SL1041 seats, K10035 locks
-Supertech 2mm oversize nitrided intake valves $150+
-Supertech 2mm oversize inconel exhaust valves $160+
-Supertech valve guides $100
-Supertech viton valve stem seals $30
-Titanium exhaust studs $100+ (Speed Factory IIRC)
-Ported intake and exhaust
-5 angle valve job.
= = = = =
Best part prices I could find totaled over $1400
NO cams, gears, lifters, rockers, HLA
Located Germantown, MD
Will ship at cost
Can bring to Haltech World Cup Finals in Maryland
= = = = =
I bought this for my new short block, but couldn't use it because of clearance issues with 9.0:1 pistons.
I lightly torqued it to my block on a engine stand to check piston clearance only.
Let me know if you want additional pics
Killer deal!

















B

Click to expand...

I have scrolled by this a few times, and I keep looking over at the wife, asking my self... "would she be mad" lmao. I am pondering, and if not, BUMP for a solid foundation of a head.

Sent a PM to you.

Looks Good

Still available?

e39avero said:

Still available?

Click to expand...

Yes Sir!

A few people asked why I couldn't use the head, so here is a short description...
= = =
Pistons are HERE. First I checked the clearance with hks 264/272 cams. It was a no go because both intake and exhaust valves hit the pistons. Next I tried with stock cams, but I still couldn't get the .030" I needed on the exhaust side. IIRC, I think I only had like .005" to .010". Someone told me I could get the piston valve pockets "fly cut" to make room for the bigger valves. But the short block was already assembled, so I wasn't going that route. Then I was thinking I might be able to get some space with adjustable cam gears. 🤔 Well for one, the diameter of the valve face extended outside the pocket, so I was thinking maybe that wouldn't even work. But beyond that, I didn't know whether jacking around dialing in the cams (i.e., timing) would negatively affect power potential. Plus I was running out of time to get it together. So I rebuilt my stock head, and tested it with the 264/272's and I had the space needed. Below are some pictures where you can see the valve face extending outside the cutouts in the piston.

Still have this head taking up space. Killer deal you could work with if you're just starting a build!

Is this still available?

Yes Sir!

Pm sent

Been playing around with AI responses lately. Since several people asked me about it, I submitted a basic query about clearancing an engine and received the following:

Piston to Valve Clearance Calculation​

To calculate piston-to-valve clearance on performance 4G63 engines, you can follow these steps:

1. Dry Install and Measure: One method is to dry install the head and valvetrain, ensuring the engine is at top dead center (TDC) for the cylinder being checked. Use a light coat of engine oil or assembly lube on the valve reliefs on top of the pistons and the valves to prevent the clay from sticking. Flatten out a layer of modeling clay (about 1/4-inch thick) across the valve reliefs. Rotate the crankshaft for two complete revolutions to ensure an accurate impression from both the intake and exhaust valves. Afterward, remove the head carefully to check the impressions left by the valves in the clay.3
2. Mathematical Estimation: While there is no exact formula for piston-to-valve clearance, you can estimate it based on the camshaft specifications and valve diameter. Set the rocker arms on the base of the cam so there is no valve lift. Rotate the engine until the valve seats, which will be evident when the valve makes contact. You can then measure the clearance. However, this method is less precise and typically requires adjustments during the dry install process.4
3. General Guidelines: For a 4G63 engine, a general guide suggests aiming for a minimum clearance of 0.080 inches (2 mm) for valve-to-piston contact. Some builders prefer a more generous clearance of 0.100 inches (2.54 mm) on the exhaust side. Ensure that the radial clearance (the distance from the outside of the valve to the inside of the valve pocket) is also adequate, typically around 0.050 to 0.060 inches.25
4. Considerations: When calculating clearance, consider the camshaft timing and valve lift. The camshaft's maximum lift may occur after TDC, which can affect clearance. Additionally, ensure that the head gasket thickness and the distance from the bottom of the head to the rocker arm cup are accounted for in your calculations.4

By following these steps and guidelines, you can effectively calculate and ensure proper piston-to-valve clearance for your performance 4G63 engine.