454 Whats it??
10-06-2003 | 08:11 AM
#1
Thread Starter
Gold Member
Joined: Oct 2002
Posts: 1,237
Likes: 165
From: SWFL
454 Whats it??
I'm helping a friend with his 81 Chris Craft Stinger project boat.
The engines are out and we are wondering what they are, here are some #s found on the blocks. It would be nice to know what our base line is....
1. GM 7.4 Hi Performance (cast in block)
2. GM 74L6
3.14015445
4. 335
5.T12088XN
Thanks
Joe
The engines are out and we are wondering what they are, here are some #s found on the blocks. It would be nice to know what our base line is....
1. GM 7.4 Hi Performance (cast in block)
2. GM 74L6
3.14015445
4. 335
5.T12088XN
Thanks
Joe
10-06-2003 | 08:48 AM
#2
MarineKinetics
Joined: Oct 2002
Posts: 942
Likes: 4
From: Rochester, NY
This site will give you all the casting # locations, casting #s listed and how to decode your block, heads etc. Try the rest of the site also its a great resource.
Hope this helps,
Bob
http://www.mortec.com/location.htm
Hope this helps,
Bob
http://www.mortec.com/location.htm
10-06-2003 | 10:04 AM
#3
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Joined: Jan 2001
Posts: 1,658
Likes: 0
From: ST. Louis, MO, USA
The XN indicates a 77-79 INBOARD left rotation, 330hp. Probably not oiginal, so who know what's in there. Check the heads though. If your lucky, they might be the large oval ports that were put on the lower hp motors around those years.
Gary
Gary
