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Author Topic: 454 Big block guys???????  (Read 4090 times)

Offline Novadiecast

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454 Big block guys???????
« on: June 21, 2007, 02:28:26 pm »
I have a 454 with engine code TRH dated h-10-73 casting number ending in 289 so it is a late 73 454 but any idea if it would be a 2 bolt or 4 bolt block without ripping in out of the car it is in now???
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1985 Crew Cab dually project soon to be SRW Short Bed

Offline Captkaos

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Re: 454 Big block guys???????
« Reply #1 on: June 21, 2007, 02:55:05 pm »
Is the block code 3999289, if so it is a 2 bolt main.  These were 72-78 Power power passenger car/truck blocks.
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Offline Novadiecast

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Re: 454 Big block guys???????
« Reply #2 on: June 21, 2007, 02:59:25 pm »
It is 3999289 but they were came both ways to my understanding?????
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1985 Crew Cab dually project soon to be SRW Short Bed

Offline joesgarage71

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Re: 454 Big block guys???????
« Reply #3 on: June 22, 2007, 09:29:01 am »
 TRH is a 454 400 trans 240HP truck engine
 3999289 454 2 bolt truck
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78' K-20 355/SM465/twin stick 205 6" on 36's
14 bolt FF/big bearing Dana 44 4.56 gears
92' GMC C-1500 454/4L80E/14 bolt
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