michaeljf Posted November 22, 2017 Report Share Posted November 22, 2017 Hello,Can anyone tell me what this block belongs to? CR4806HE. Regards,Michael. Quote Link to post Share on other sites
Mark69 Posted November 22, 2017 Report Share Posted November 22, 2017 Hi Micheal, numbers followed closely to vehicle identification no ,so probably 73/74 model tr6 pi. Mark Quote Link to post Share on other sites
saffrontr Posted November 22, 2017 Report Share Posted November 22, 2017 Michael, The highest number for a TR6 CR series engine is circa CR4582HE. The Mark 1 2.5PI also used CR numbering on the engine so looks like you may have one of those. Easy way to check is to see if there is a recess in the top of the cylinder bore to suit the cylinder head gasket fitted to the later TR6 engines, if there isn't then you have a Mk1 2.5PI block. If the head is fitted then the later gasket has a tag to the rear of the engine on the distributor side. Let us know what you find. Derek Quote Link to post Share on other sites
pfenlon Posted November 22, 2017 Report Share Posted November 22, 2017 I was castigated for posting here some while ago that I had seen a 6 pot engine having its block being re-stamped, by a Very well known TR member. You really just don't know. with things like that happening. He proudly told me that they were the correct Stanpart stamps and cost £70 back in the day. Quote Link to post Share on other sites
michaeljf Posted November 23, 2017 Author Report Share Posted November 23, 2017 Hello all,Thank you for the replies.There is no recess in top of block.(all I got,with some BAD information is the block,set of 77.4mm pistons,rods , big end caps and a sad unrelated?looking crank.) I was told the block came out of a '69 Tr6 ! I read in the Rimmer vehicle I.D. section that there was a gap from CR2911 to CR5049 ???? The motor that I currently have fitted is MG2412HEBW.I plan to rebuild the original motor,CC25539HE and refit it.(I was thinking of using some of the parts from the CR block but I don't think so now) Regards,Michael. Quote Link to post Share on other sites
Keith66 Posted November 23, 2017 Report Share Posted November 23, 2017 Hi All I've often seen this mentioned. Are these the recesses everyone means? Cheerrs Keith Quote Link to post Share on other sites
saffrontr Posted November 24, 2017 Report Share Posted November 24, 2017 Keith, Yes, the recessed block was on all TR6 from CC75001 / CP75001 cheers Derek Quote Link to post Share on other sites
Keith66 Posted November 26, 2017 Report Share Posted November 26, 2017 derek Thought so, so mine is right then. Cheers Keith Quote Link to post Share on other sites
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