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Topic Review (Newest First)
05-13-2013 09:59 PM
Dean Pearson [QUOTE=yankee phil;1674482]Can you tell me the number of the castings on those crate motor rectagular port heads . There are more crate motored trucks here in the junkyards than original equipped ones so it'd be handy to be able to pick out the hidden treasures. I've heard of these crate motor heads but have yet to see a pair,kind if a myth over here I'd like to see proven true.[/QUOTE )

The number on mine is, 6272990
There is also a M-7-3 and in another spot GM1T, Also says HI PERF.
All under the valve cover and really easy to see.

Dean.
05-11-2013 09:44 PM
1971BB427 It's a post from 2009, but the additional info is very interesting, and will benefit those with similar engines today. I'm building a '83 454 from a truck, and swapping the factory peanut heads to Edelbrock oval port aluminum heads. Best upgrade you can make to a smog motor 454 with peanut heads is a good pair of heads and the right cam. The smaller combustion chambers and better flow will increase compression, and develope more HP and torque.
05-11-2013 01:45 AM
yankee phil
Quote:
Originally Posted by 454C10 View Post
this post is getting a little old. almost 4 years now.
Hey ,your still reading it,maybe cobalt will read it and answer the question,even if its not relevant to you now that your engine is built or blown up, the rest of us might find the information helpful , interesting,and its a way to get in touch with someone that has experience with what's being discussed,probably the main purpose behind keeping these threads on line.
05-10-2013 04:40 AM
454C10 this post is getting a little old. almost 4 years now.
05-10-2013 01:49 AM
yankee phil
Quote:
Originally Posted by cobalt327 View Post
ID Chevy engines

I don't see that block c/n, but there are two similar:

14015445: 1975-'90; 454; car and truck
14015543: 1987-'90; 454; 4-bolt; Gen-5

The heads are rectangle port w/325 cc intake port volume, decent heads when matched up to the rest of the engine. They were a replacement/crate engine head.
Can you tell me the number of the castings on those crate motor rectagular port heads . There are more crate motored trucks here in the junkyards than original equipped ones so it'd be handy to be able to pick out the hidden treasures. I've heard of these crate motor heads but have yet to see a pair,kind if a myth over here I'd like to see proven true.
05-10-2013 01:43 AM
yankee phil
Quote:
Originally Posted by cobalt327 View Post
ID Chevy engines

I don't see that block c/n, but there are two similar:

• 14015445: 1975-'90; 454; car and truck
• 14015543: 1987-'90; 454; 4-bolt; Gen-5

The heads are rectangle port w/325 cc intake port volume, decent heads when matched up to the rest of the engine. They were a replacement/crate engine head.
What are the casting numbers of the crate engines rectangular port heads,I've heard of these before but have never seen a pair for myself. Over here there are more crate engines than old stock in the junk yards,would be useful to know the better head numbers.
01-08-2013 04:59 PM
techinspector1
Quote:
Originally Posted by BuzzLOL View Post
.. If I was actually putting that crate engine in a heavy duty truck, would step back from the XE268 cam to more like the XE262 or XE 256 to flatten/broaden the torque curve and start it at a lower RPM... or maybe even a Summit 214/224 cam to get less radical cam lobes that would last 250,000 miles...
DING, DING, DING, we have a winner. Someone who actually might hate extreme grinds as much as I do.
01-08-2013 04:53 PM
BuzzLOL .. If I was actually putting that crate engine in a heavy duty truck, would step back from the XE268 cam to more like the XE262 or XE 256 to flatten/broaden the torque curve and start it at a lower RPM... or maybe even a Summit 214/224 cam to get less radical cam lobes that would last 250,000 miles...
01-08-2013 04:38 PM
cobalt327 Advertised 400 hp but made 446 hp.
01-08-2013 04:06 PM
BuzzLOL .. LOL! Makes 1990 Chevy SS454 pickup's "255HP" look pathetic, doesn't it...
01-08-2013 03:27 PM
techinspector1
Quote:
Originally Posted by BuzzLOL View Post
.. Here's the article on Demon 400HP peanut oval port heads 454" engines:

Cheap Big-Block Chevy Engine Build - Car Craft Magazine
Forget horsepower, look at that torque curve!!!!
01-08-2013 03:19 PM
BuzzLOL .. Here's the article on Demon 400HP peanut oval port heads 454" engines:

Cheap Big-Block Chevy Engine Build - Car Craft Magazine
01-07-2013 03:15 AM
BuzzLOL .. I think there is a company that sells crate engines with stock truck peanut port heads, bumped up compression ratio pistons and cam, and rated a surprising 400 HP... I think even peanut ports are big compared to SBC ports...
01-05-2013 02:39 AM
cobalt327 ID Chevy engines

I don't see that block c/n, but there are two similar:

14015445: 1975-'90; 454; car and truck
14015543: 1987-'90; 454; 4-bolt; Gen-5

The heads are rectangle port w/325 cc intake port volume, decent heads when matched up to the rest of the engine. They were a replacement/crate engine head.
01-04-2013 07:04 PM
Dean Pearson
Thanks.

Wanted to thank you guys for the info.
In my case I have the original engine that I want to bump up a bit but then I also have a fully machined matching block that is bored .030 on the pistons and .010 on the cam bearings so,....
I plan to just get my car running with the original engine and then once I'm driving it build the second one.
On the first one I fear its going to be a slug. The engine casting #'s are
14015885 (I think) They are hard to read. and the heads say Hi Perf.
6272990.
Hope that helps you help me.

Also here are some more pics. of my Studebaker Proj, It's a 52 two door hard top with a 50 bullet nose.

Thanks for all the advice.

Dean.
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