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View steve392's profile Entries: 204
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07-02-2006 09:11 AM Hemi Assembly-Heads
I used some checking springs on the assembled heads to take dimensions for future use. Some of the things I was able to measure were valve-to-piston clearance using a dial indicator (a double-check on the clay method).
The finished heads on the block...I used adjustable pushrods and set lifter pre-load at .030" per Comp Cams instructions. The long block is just about done.


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  [Entry #19]

07-02-2006 08:48 AM Hemi Assembly-Heads
The heads were done basically as a stock re-build. I sent the rockers to Hot Heads and had them do the work which included hard-chroming the shafts and bronze-bushed rockers. They did a nice job.
The heads were sent to a local cylinder head shop and were given stock size stainless valves and Comp Cam springs. Positive valve seals on intake side and umbrella seals on exhaust side. Also seen in picture are the spark plug tube seals which helps in keeping oil out of the spark plug tubes. The heads cleaned up real well, with only one heli-coil needed to repair a broken-off exhaust stud.


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  [Entry #18]

07-02-2006 08:30 AM Hemi Assembly-Heads
Here's a shot of the setup for the heads. I used a set of SCE solid copper head gaskets, .032" thick. These were the thinnest ones I could get.
Notice anything wrong with the picture? I put the gaskets on to take the photo, only to see later that the gasket is placed backwards! Some of the pushrod holes are covered by the gasket. I wouldn't haven't gotten far like that.
As I mentioned earlier, the compression ratio I was aiming for was 8:1. The combination of the pistons being a little lower in the bores and the deep valve reliefs gave me around 7.7:1.
I had the heads milled to take off a few cc's, and ended up with a combustion chamber volume of 104.6 cc.
This would also come back to get me later when the intake manifold had to be shaved to fit up to the "lowered" heads.


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  [Entry #17]

06-15-2006 05:54 AM Hemi Assembly-HPC coatings
Besides having the pistons coated by HPC, I also sent them the oil pan and valve covers to have them coated with one of HPC's appearance coatings. I'm not a chrome kind of guy, and not into the ultra-high polish finishes on most parts, so I thought I would try something a little different.
The finish is actually the same finish that they use as the high-temp header coating. Its a satin aluminum look that works for me. It should hold up real well.


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  [Entry #16]

06-15-2006 05:45 AM Hemi Assembly-oil pump and pan
Time to finish up the bottom end.

I added a Milodon high volume pump with integral pickup/screen made for the early Hemi. Nice unit... Before installing I installed the Hot Heads bypass plug so that all oil goes thru the filter.
I got the clay out again and checked the clearance between the bottom of the pan and the oil pump pickup. Clearance from pan to bolts is about 1/8" and from pan to pickup screen came in at .400". Good to go.
After triple checking everything, including main cap and rod bolt torques, the oil pan went on. The pan is also from Hot Heads, who gets it from KC Racing in Australia. Internally baffled with a crank scraper.
More on the finish I put on the pan in the next entry...



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  [Entry #15]

Pages (41): 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 [38] 39 40 41


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