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#1
09-30-2015, 11:35 PM
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Re: 1969 L78 396 375 HP Dyno Test
Just don`t make the same first test drive video as Donnie made.....Priceless [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img] [img]<<GRAEMLIN_URL>>/burnout.gif[/img]
Dan
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69 300 Deluxe Post Sedan Frost Green 69 SS396 300 Deluxe Post Sedan Lemans Blue SOLD 70 Buick Skylark Post Sedan Gulfstream Blue 70 Buick Skylark Post Sedan Burnished Saddle http://m.youtube.com/watch?v=PM3DE8qI2NY https://m.youtube.com/watch?v=Yn4xEmGypUw 
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#2
10-01-2015, 02:10 AM
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Re: 1969 L78 396 375 HP Dyno Test
Long Live L78's! The unsung hero and road warrior of the Big Block Kingdom.
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 69 SS/RS 396 M20 X22 Nor 12B,72B,712 bought 1979 FULL OWNER HISTORY 69 Dick Harrell tribute Day II 427 M20 4.10 X11 76 orig pnt, 711 67 Super Stock 302 Camaro re-creation
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#3
10-01-2015, 12:17 PM
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Re: 1969 L78 396 375 HP Dyno Test
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bbbentley</div><div class="ubbcode-body">Long Live L78's! The unsung hero and road warrior of the Big Block Kingdom. </div></div>
You`re my Unsung Hero [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img] Dan
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69 300 Deluxe Post Sedan Frost Green 69 SS396 300 Deluxe Post Sedan Lemans Blue SOLD 70 Buick Skylark Post Sedan Gulfstream Blue 70 Buick Skylark Post Sedan Burnished Saddle http://m.youtube.com/watch?v=PM3DE8qI2NY https://m.youtube.com/watch?v=Yn4xEmGypUw
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#4
10-01-2015, 11:26 AM
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Re: 1969 L78 396 375 HP Dyno Test
Nice numbers on that L78. [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]
I have a similar build that is nearly done, although it is .070 over, with a bit more aggressive cam. I hope to make a little more power, but the dyno will tell.
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Rick 69 Chevelle SS396 Silver L78 M21 Post Sedan (Berger Chev.) 69 Chevelle SS396 Black L78 4-speed 4.10 Post Sedan  Don't text and drive. Somebody's life may depend on it!
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#5
10-01-2015, 05:54 PM
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Re: 1969 L78 396 375 HP Dyno Test
So is it safe to say that these cars when new had this kind of HP with a set of headers bolted to them?
Very impressive!! I had always heard that the 69 Z's were just as fast when geared properly.
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1970 Chevelle SS LS5 - 79k original miles, Tripple Black, build sheet 1969 Camaro SS/RS X22 - 548 with 5 spd, Hugger Orange, Houdstooth Interior
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#6
10-24-2015, 04:06 AM
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Re: 1969 L78 396 375 HP Dyno Test
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Survivor 69/Z28</div><div class="ubbcode-body">So is it safe to say that these cars when new had this kind of HP with a set of headers bolted to them?
Very impressive!! I had always heard that the 69 Z's were just as fast when geared properly. </div></div> Never saw a street Z that was faster then high 12s.Most needed a big cam to go that fast.I got tired of running them with my L78.Of course they were never intended to be drag cars.
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#7
10-25-2015, 01:31 PM
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Re: 1969 L78 396 375 HP Dyno Test
[quote=Survivor 69/Z28]So is it safe to say that these cars when new had this kind of HP with a set of headers bolted to them?
Very impressive!! I had always heard that the 69 Z's were just as fast when geared properly.[/quo Nope! Maybe with a plug wire pulled off they were.
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#8
10-01-2015, 07:51 PM
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Re: 1969 L78 396 375 HP Dyno Test
In as-delivered condition with manifolds, I'd say the factory 375 HP rating was fairly accurate. Headers are typically worth ~30 HP on these engines.
Read this and note what JRSully stated on the last page.
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#9
10-01-2015, 09:03 PM
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Re: 1969 L78 396 375 HP Dyno Test
Eric,
I may need to call you sometime about my stumbling issue on my 69 L78. Love the stock look but with headers! They just make these old motors run so much better.
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1970 Chevelle SS LS5 - 79k original miles, Tripple Black, build sheet 1969 Camaro SS/RS X22 - 548 with 5 spd, Hugger Orange, Houdstooth Interior
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#10
10-05-2015, 01:54 AM
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Re: 1969 L78 396 375 HP Dyno Test
My 70 L78 Nova with manifolds and stock exhaust with crossflow muffler is disappointing.
On the 67 L78 with headers and a Flowmaster system is like Mr Toads wild ride.
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"Knowledge is good" Emil Fabor 67 L/78 Camaro SS/RS H-H,1W,2LGSR,3SL,4K,5BY. (Sold) 70 L/78 Nova M-21,Black Cherry,Sandalwood Int. 09 Pontiac G8 GT Premium,Sport,Roof. Liquid Red.
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