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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: choptop on November 14, 2009, 06:47:23 pm

Title: Bigblock question
Post by: choptop on November 14, 2009, 06:47:23 pm

I got my bigblocks today, and so far am pretty happy. I gotta clean a spot so I can get them in the shop.
one of them shows to be a 68 398 casting number 3916323. Thats awesome to me because I have a 68 Elcamino that I can put it in and have era correct. (not a requirement, just a coincedent Im going with)

 The other one is a casting no>361356. It may be a 361956 because thats the only one I can find and I may have not seen the numbers correctly. But it states its a 454. The question I have is that it has "conv" cast into the block. I have 5 bigblocks in the shop now, and this is the only one with this stamped on it. Is there a chance it stands for "conventional" meaning tall deck ir something else? I only paid $200 for the pair and am happy enough with the 396 for the price. Just wnadering what this was so I can determine a route to go with it. Sorry for the pic Thanks guys

Title: Re: Bigblock question
Post by: joesgarage71 on November 14, 2009, 08:45:42 pm

 mortec says it not a tall deck 73-90 454. Common light duty block,convo

Title: Re: Bigblock question
Post by: choptop on November 14, 2009, 08:52:42 pm

Whats the deal with the conv? Does it mean anything?

Title: Re: Bigblock question
Post by: joesgarage71 on November 15, 2009, 08:49:01 am

Nope

Title: Re: Bigblock question
Post by: VileZambonie on November 15, 2009, 08:50:27 am

I have no idea what conv stands for

Title: Re: Bigblock question
Post by: eventhorizon66 on November 15, 2009, 11:08:21 am

In that case, it stands for "conversation" piece.

Title: Re: Bigblock question
Post by: choptop on November 15, 2009, 02:51:12 pm

Quote from: eventhorizon66 on November 15, 2009, 11:08:21 am

In that case, it stands for "conversation" piece.

ok, Ill buy that one. :D