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Paul (no login)
Posted Sep 10, 2007 5:47 AM
I received an email regarding dimensional deviation between paragon models used on the 427 models. The following scans may be able to clear up some of this, however, since the 427 was used on a variety of boats from Sea Skiff Corinthians, 31' Sports Express, and 47' Cruisers, there are undoubtedly a lot of different gear assemblies out there, not to mention the V-drive used on the 23' Commander.
Hope this helps a bit. We'll add more info as it becomes available here onto this Paragon thread.
This first image shows the profile of the HJ-7
This second image shows the P-400 profile.
The HJ-7 Paragon was used on all 427 engines before (engine) serial number 402936 except for 402969 and 402998. It would be interesting to know about those last two serial numbers, eh? They were offered in 1.5:1, 2.0:1, and 2.5:1 gear reductions in a LH and RH configuration.
The P-400 Paragon was used after engine serial number 402936 except for 402969 and 402998. These were offered in the same gear ratios as noted above, but with the addition of a 3.0:1, which was undboutedly added to propell larger craft more efficiently.
Note: These transmissions are VERY HEAVY. This is the small box used on the 283 and 327 inboard boats, and I managed to lift it by hand on one or two occasions, by leaning back against a wall. I was lucky I didn't hurt myself! Get a winch or get a friend from the World Wrestling Federation to help, 
Regards
Paul
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