Re: Hemi Vs 396
[Re: bigdad]
#3031314
04/06/22 04:19 PM
04/06/22 04:19 PM
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Joined: Jan 2003
Posts: 10,763 North Dakota
6PakBee
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,763
North Dakota
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Two comments. 1) I think the Hemi needed deeper gears and 2) I wonder if that's one of those externally balanced 396's?
"We live in a time when intelligent people are being silenced so that stupid people won't be offended".
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Re: Hemi Vs 396
[Re: 6PakBee]
#3031376
04/06/22 07:41 PM
04/06/22 07:41 PM
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Joined: Jan 2003
Posts: 20,217 Park Forest, IL
slantzilla
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,217
Park Forest, IL
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You mean like the Jenkins 396 in Super Stock that was really 488?
"Everybody funny, now you funny too."
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Re: Hemi Vs 396
[Re: slantzilla]
#3031413
04/06/22 10:09 PM
04/06/22 10:09 PM
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Joined: Jul 2011
Posts: 114 napa ca
procharged 484
member
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member
Joined: Jul 2011
Posts: 114
napa ca
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You mean like the Jenkins 396 in Super Stock that was really 488? I too would like to hear more about the 488
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Re: Hemi Vs 396
[Re: slantzilla]
#3031663
04/07/22 06:36 PM
04/07/22 06:36 PM
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Joined: Oct 2007
Posts: 4,213 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,213
New York
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If I were a famous world class engine builder and racer, that's exactly what I would do: throw everything over the cliff. A 488 would be protested the first time it starts up.
Boffin Emeritus
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Re: Hemi Vs 396
[Re: procharged 484]
#3031681
04/07/22 07:55 PM
04/07/22 07:55 PM
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Joined: May 2012
Posts: 1,850 South Bend
John Brown
top fuel
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top fuel
Joined: May 2012
Posts: 1,850
South Bend
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You mean like the Jenkins 396 in Super Stock that was really 488? I too would like to hear more about the 488 Most haven't read about Mr 5 and 50 either.....
July 19th should be "Drive Like Rockford Day". R.I.P. Jimmie.
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Re: Hemi Vs 396
[Re: procharged 484]
#3031732
04/08/22 12:52 AM
04/08/22 12:52 AM
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Joined: Jan 2003
Posts: 20,217 Park Forest, IL
slantzilla
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,217
Park Forest, IL
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You mean like the Jenkins 396 in Super Stock that was really 488? I too would like to hear more about the 488 That was in one of the magazines years ago. They had built a legal 68 Camaro SS396 and Jenkins swabbed the deck with them. They protested and he had a 480+ ci motor. The good old days...... I have read many stories of Ma Mopar and ringer cars too.
"Everybody funny, now you funny too."
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Re: Hemi Vs 396
[Re: topside]
#3031776
04/08/22 08:18 AM
04/08/22 08:18 AM
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Joined: Jun 2006
Posts: 5,167 CT
GTX MATT
master
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master
Joined: Jun 2006
Posts: 5,167
CT
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L89 is a 427, L78 is the 396/375HP deal. L89 is an aluminum headed 396, same as an L78 but heads are aluminum. The 396 running hard is no surprise, the L78 396 is just a smaller version of the 425 HP L72 427 and the 450 HP LS6 454, all 3 engines have the same heads/cam/intake/carb. The heads flow 290 cfm+, and the stock cam is 242 @ .050. I wasn’t there but some stock L78s were duds from the factory, for exactly the reasons you’d think - big heads, fairly aggressive cam for stock, etc. They came with smog pumps too. Some ran hard. But the potential was there regardless.
Last edited by GTX MATT; 04/08/22 08:32 AM.
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Re: Hemi Vs 396
[Re: GTX MATT]
#3031785
04/08/22 08:55 AM
04/08/22 08:55 AM
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Joined: Jan 2003
Posts: 6,608 Indiana
EV2DEMON
The Camaro Kid
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The Camaro Kid
Joined: Jan 2003
Posts: 6,608
Indiana
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L89 is a 427, L78 is the 396/375HP deal. L89 is an aluminum headed 396, same as an L78 but heads are aluminum. The 396 running hard is no surprise, the L78 396 is just a smaller version of the 425 HP L72 427 and the 450 HP LS6 454, all 3 engines have the same heads/cam/intake/carb. The heads flow 290 cfm+, and the stock cam is 242 @ .050. I wasn’t there but some stock L78s were duds from the factory, for exactly the reasons you’d think - big heads, fairly aggressive cam for stock, etc. They came with smog pumps too. Some ran hard. But the potential was there regardless. L89 is the RPO code for the aluminum heads on a performance big block and not indicative of cubic inches. L89 option was available on both the L78 396 in Chevelle/Camaro/Nova, as well as the L71/L72 427 in Corvette.
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Re: Hemi Vs 396
[Re: EV2DEMON]
#3031792
04/08/22 09:20 AM
04/08/22 09:20 AM
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Joined: Jan 2003
Posts: 12,301 Benton, IL.
DaveRS23
Special needs idiot
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Special needs idiot
Joined: Jan 2003
Posts: 12,301
Benton, IL.
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Back when we were street racing, there weren't many BB Shivvies that were real competitive. And the ones that were, they couldn't keep together. Seems like they especially had problems with the valve train/rockers.
Master, again and still
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Re: Hemi Vs 396
[Re: bigdad]
#3031795
04/08/22 09:36 AM
04/08/22 09:36 AM
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Joined: Oct 2007
Posts: 4,213 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,213
New York
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An A:B comparison is as useful as asking only 2 people who should be President.
Boffin Emeritus
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Re: Hemi Vs 396
[Re: EV2DEMON]
#3031798
04/08/22 10:03 AM
04/08/22 10:03 AM
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Joined: Jun 2006
Posts: 5,167 CT
GTX MATT
master
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master
Joined: Jun 2006
Posts: 5,167
CT
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L89 is a 427, L78 is the 396/375HP deal. L89 is an aluminum headed 396, same as an L78 but heads are aluminum. The 396 running hard is no surprise, the L78 396 is just a smaller version of the 425 HP L72 427 and the 450 HP LS6 454, all 3 engines have the same heads/cam/intake/carb. The heads flow 290 cfm+, and the stock cam is 242 @ .050. I wasn’t there but some stock L78s were duds from the factory, for exactly the reasons you’d think - big heads, fairly aggressive cam for stock, etc. They came with smog pumps too. Some ran hard. But the potential was there regardless. L89 is the RPO code for the aluminum heads on a performance big block and not indicative of cubic inches. L89 option was available on both the L78 396 in Chevelle/Camaro/Nova, as well as the L71/L72 427 in Corvette. I never knew that, sorry Topside I guess you were also right! But I’m sure the Chevelle in question is *claiming* to be an L89/L78 haha.
Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street
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Re: Hemi Vs 396
[Re: slantzilla]
#3031840
04/08/22 12:55 PM
04/08/22 12:55 PM
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Joined: Feb 2015
Posts: 2,083 CA
crackedback
top fuel
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top fuel
Joined: Feb 2015
Posts: 2,083
CA
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You mean like the Jenkins 396 in Super Stock that was really 488? I too would like to hear more about the 488 That was in one of the magazines years ago. They had built a legal 68 Camaro SS396 and Jenkins swabbed the deck with them. They protested and he had a 480+ ci motor. The good old days...... I have read many stories of Ma Mopar and ringer cars too. Same as the old days in Na$crap. The way it was supposed to happen, a tech inspector would tell you which spark plug to pull, at least for most teams it was that way. Some teams already had a plug pulled to check volume... and surprise, the engine was in spec/tolerance. That was the only cylinder that was in spec! Most of the time the 396 chevies need deep gearing to run well.
Last edited by crackedback; 04/08/22 12:57 PM.
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