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-   -   Need help decoding this engine (https://67-72chevytrucks.com/vboard/showthread.php?t=773368)

Ron90 10-15-2018 07:08 PM
Need help decoding this engine
 
4 Attachment(s)
Can anyone tell me what these numbers mean

Bigdav160 10-15-2018 08:26 PM
Re: Need help decoding this engine
 
Truck based 454?

ka_jd7and1 10-15-2018 11:44 PM
Re: Need help decoding this engine
 
TRL engine suffix:
1973, 1974, 1978 TRUCK 454

Block: 3999289 1972-78 454 2 bolt main

Intake: 3883948 66-68 Passenger,Chevelle, Corvette,(427,67),Camaro(396,66-68) Cast Iron,Oval Port,390 HP,Q-jet

I can't see the year clearly enough in your last pic to tell you.

Chevyrestorerman 10-16-2018 12:00 AM
Re: Need help decoding this engine
 
Looks like a 7 on the year, 1977. maybe 73 just guessing.

Ron90 10-16-2018 12:09 AM
Re: Need help decoding this engine
 
1 Attachment(s)
Better picture of that last number

Chevyrestorerman 10-16-2018 07:41 AM
Re: Need help decoding this engine
 
Date block was cast - June 22 1973 ? Motor assembled June 26.


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