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3818 Posts in 1183 Topics- by 2192 Members - Latest Member: mariodea

February 10, 2012, 04:37:16 PM
Maintenance IssuesTR4 RangeTR4A Cylinder Head identification
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Author Topic: TR4A Cylinder Head identification  (Read 654 times)
wirehairedtailgunner
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Posts: 1
« on: March 29, 2009, 08:29:39 PM »
I purchased a TR4A cylinder head on ebay and plan to install it on my TR4 block. The head has "the bevel cast along the edge of each combustion chamber" of a TR4A head - but I can't locate the #511695 cast into it. Where is this # supposed to be cast? The # between the push rod tubes on the left side of the cylinder head is 582137. Is this a TR4 head with bevels cut later?
Thanks from a novice!
Rick Rogers
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ChrisK
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Posts: 1
« Reply #1 on: April 03, 2009, 11:32:25 AM »
Hi Rick,

The surefire way to tell if it's a TR4A head is to measure the OD of the valve guides; they should all be 1/2".

I expect to find the p/n 511695 stamped, not cast, on the top next to the front intake port. I suspect that the number you found is a casting number, not a part number...

Best,
chris
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