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#1
07-24-2005, 12:54 PM
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do pontiac engines sound different than chevy/ford engines? Or is it the same tone.
I know you can tell small block and big block chevy tone a bit. But I was wondering, is Pontiac a unique sound as well? If you were blindfolded could you tell the difference between a Chevy big block and pontiac 400?? I'm just curious
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67' bird |
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#2
07-24-2005, 03:56 PM
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First Guess: The sound of the fuel burning in the cylinders isn't a bit different between Chevy Big Block, Pontiac, Olds, MG, Toyota, whatever--except for the displacement and the RPM involved.
Everything after that-valve timing, port shape, exhaust manifold/headers, exhaust tubes, muffler, tailpipes, etc., has it's own effect on the characteristics of the noise emitted. Change the exhaust systems, and two Pontiac 400s will not sound the same. |
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#3
07-24-2005, 04:27 PM
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I can tell a difference between a BBC and a Pontiac in the way they sound under hard acceleration...like the dragstrip.
I always thought that the engine with the most distinctive sound was the Olds V8...it had almost a burbling sound to the exhaust. |
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#4
07-24-2005, 04:34 PM
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I know the high compression motors I have built(13.5/1) had more of a "crackle" sound than my pump gas 463(9.9/1). I really like the sound of my 3" Pypes exhaust and Xcellerator mufflers. When I added the X it seemed to mellow the tone somewhat.
 -Jim
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#5
07-24-2005, 04:50 PM
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I have always been able to tell the difference in the sound of a 427 vette between a 428 ford for example. I think chevy engines have a pretty distinct sound like the 427 with solid lifters and the ls6 454 both have distinctive idles,,,, so does a 426 hemi. i think its much harder to distinguish between small block and more mass produced engines, but some of the special ones always seem to stick out above the rest
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#6
07-24-2005, 04:52 PM
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by hot67bird:
do pontiac engines sound different than chevy/ford engines? I'm just curious </div></BLOCKQUOTE> They sound pretty good if you ask me! http://heath5.homelinux.net/firebird/lopey_bird.wav
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79 Firebird/`70 400 with `77 6x-4s shaved .065"/4 speed BW ST-10/Cliff Q-Jet/XE268/3.08 99 Trans Am/383 LS1/TSP headers and catback/custom grind cam/Vigilante 2500/Strano springs and Konis 08 Corvette - Base (SOLD) 75 Corvette/L48 350 (LSx -4L60E one day) -------------------------------------------------------------- |
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#7
07-24-2005, 08:43 PM
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The old nail head Buick had a very unique sound.
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Patrick -------------------------------- *SOLD * 1971 LeMans street car, 428ci TH350 3:31 12 bolt, 3880#,13.6 @ 101.82 Show & go  1964 Tempest work in progress  400 with Tremec 5 speed1967 LeMans drop top project. I tracked down my great grand father & dad's old car. |
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#8
07-24-2005, 08:57 PM
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i love how pontiacs sound
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Keepin it real in 2025. 'just another time traveler...       :range r: 
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#9
07-24-2005, 10:21 PM
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I know that back in the '70's and before that I could tell the difference between the different stock cars going down the road. Mopars always had a real distinctive sound to me. My buddys Roadrunner has a Mopar sound to it even with headers and a far from stock cam. I'm not sure but I think the X-pipe made my TA sound less "Pontiac" than it did. It sounds more like a built 5.0 Mustang to me now. Kind'a odd. It's all about resonance frequency I wouldn't doubt that if you change the cam, heads, and exhaust enough you can lose that "original" sound.
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Uneasyrider “To find yourself, think for yourself.” ― Socrates “The unexamined life is not worth living.” ― Socrates “Wise men speak because they have something to say; fools because they have to say something.” ― Plato |
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#10
07-25-2005, 05:43 AM
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Chamber shapes can affect the sound. The biggest influence winth the Pontiac is the exhaust crossover in the heads/intake. If you "fill" the crossover, the sound changes dramatically, making it sound a lot like BBC.
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#11
07-25-2005, 06:26 AM
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Mr. P-Body:
Chamber shapes can affect the sound. The biggest influence winth the Pontiac is the exhaust crossover in the heads/intake. If you "fill" the crossover, the sound changes dramatically, making it sound a lot like BBC. </div></BLOCKQUOTE> I wouldn't doubt that your right on that.  I forgot about that crossover.
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Uneasyrider “To find yourself, think for yourself.” ― Socrates “The unexamined life is not worth living.” ― Socrates “Wise men speak because they have something to say; fools because they have to say something.” ― Plato |
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#12
07-26-2005, 12:44 PM
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Pontiac engines definetly sound different. I can always tell a Pontiac engine from a Chevy engine. The pontiac tone is deeper than a chevy.
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#13
07-26-2005, 02:12 PM
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I asked this question when I was new to the board was well... check out the responses.
http://forums.performanceyears.com/groupee/forums/a/tpc...676070321#1676070321
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. Mark S . Who needs nice and pretty, when you can have mean and nasty? KRE Aluminum headed 463CID 73 LeMans. Used to run 10.6x @ 124.55. 3700lbs . So much for 2020...shootin for 9s in 2021...and in 2022 apparently.....and 2023....and 2024.....and 2025.....who am I kidding? there will be no 9s with this engine! >>My 73 Build thread |
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#14
07-26-2005, 03:46 PM
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Mr. P-Body:
Chamber shapes can affect the sound. The biggest influence winth the Pontiac is the exhaust crossover in the heads/intake. If you "fill" the crossover, the sound changes dramatically, making it sound a lot like BBC. </div></BLOCKQUOTE> ....maybe the BBC sounds a lot like a Pontiac...  
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 ECM member. 2008 Outlaw Pontiac Drag Series Champion MANDRA Do it now fool! Life is short. 69 Grand Prix/3163lbs / IAII 535 w/ Tiger heads by Gaydosh....9.35@ 144 so far..  through mufflers. 1.26 60'. Going back to track with pump gas engine.... My 60 Ventura retired to street/strip duty.. |
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#15
07-26-2005, 04:05 PM
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All of the old V8s had their own sound,you can hear a Olds 455 comming from a mile away,Pontiacs have their own sound,it is one of their strong points.Great sounding engines,a Tri Power with the accelerator mashed to to floor is always a good thing.Fill the crossovers and they sound even better.Most BBCs sound like crap to me.454s sound worse than 427s.
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#16
07-26-2005, 05:35 PM
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by dragncar:
All of the old V8s had their own sound,you can hear a Olds 455 comming from a mile away,Pontiacs have their own sound,it is one of their strong points.Great sounding engines,a Tri Power with the accelerator mashed to to floor is always a good thing.Fill the crossovers and they sound even better.Most BBCs sound like crap to me.454s sound worse than 427s. </div></BLOCKQUOTE> I don,t know about that some or most BBCHEVYS sound great. Almost as good as a worked Pontiac Engine
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--------------------------------------------------------- "And he Asked, Who Owns This Car? With The Peace Sign, Mag Wheels, and the Four on the Floor?? --------------------------------------------------------- |
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