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#1
12-09-2023, 12:39 PM
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Just curious. Dyno numbers for 63 SD with 980 heads and bathtub intake
I'm just being curious as I've never read actual dyno numbers. Read about other makes of the era but not a true 63 SD with all the 'goodies'. Thanks.
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#2
12-09-2023, 12:54 PM
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Didn’t butler do a dyno session with a stock sd motor?
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 1963 Cat SD Clone (old school) streeter 1964 GTO post coupe, tripower, 4speed (build) 1965 GTO 389 tripower, 4 speed, driver 1966 GTO dragcar 1966 GTO Ragtop 1969 Tempest ET clone street/strip 1969 GTO Judge RA lll, auto 1969 GTO limelight Conv. 4speed go and show (sold) 1970 GP SSJ 1970 GTO barn find..TLB…390 horse?….yeh, 390 1972 GTO 455 HO, 4 speed, (build) 1973 Grand Safari wagon, 700hp stoplight sleeper 525ci DCI & 609ci LM V head builds |
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#3
12-09-2023, 01:33 PM
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Tom S might have them for you maybe he will chime in .
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#4
12-09-2023, 02:00 PM
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When I did my 980 engine we did not run a Bathtub.The Bathtub was usually worth a Xtra 30 HP.My 980 engine made 538@6200 with a Iski solid roller 250 on both on a 108.434 CI,heads flo 260.It is in my 63 Lemans today with a old faithfull hyd roller and the bathtub.It was run on Verbanzic dyno in so cal a long time ago.Tom
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#5
12-09-2023, 04:18 PM
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Here is a nice link to a video of a 409 Chevy and a 63 421-SD built by Butler Racing on the dyno. Not exactly what your looking for because it didn't have the bathtub intake on it, but still cool. 488 HP is pretty amazing for that time period IMO. My sort of replica SD engine in my current 62 Catalina made 487 HP at 6000 RPM's with the replica Bathtub intake and 2 AFB's. Flat tappet solid cam similar to the Mckellar #10. Biggest difference on my engine is the D port E-Heads and the restrictive iron long branch exhaust manifolds. The compression ratio is a 90 octane friendly 10:1. So giving up 25-30 HP there. Link won't post, I will try again
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#6
12-09-2023, 04:23 PM
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Link to 421 SD vs 409 dyno test. https://www.youtube.com/watch?v=gNg569agwiU
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#7
12-09-2023, 08:43 PM
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I was just 'dreaming ' what guys like Arnie were making hp wise to beat the other makes,z11,426 III,thunderbolts. Esp that Ohio race were Arnie beat all of the fast cars with his 63 Tempest including Dyno Don for the final.
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#8
12-09-2023, 09:06 PM
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The match race cars back in the day had match race engines.Maybe called cheaters?Tom
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#9
12-09-2023, 11:02 PM
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I was reading about grumpys cars. The 66 II before he raced here Stahl's hemi for top stk at one of the times grumpy removed an illegal engine. I think his 67 396 they said was gotten from Penske after it was acid dipped for road racing. Arnie must have been a real aggressive engine builder to be in front.
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#10
12-09-2023, 11:39 PM
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I remember when I was racing with Tyree we went to HalfMoon Bay for a weekend.Jess had the big motor in the car.He dodged the bullet and did not get caught.We had a stock set of 980s and a big ported set of 127s.Tom
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#11
12-10-2023, 11:20 AM
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Most of the Chevy's in 62-63 were drag racing the Z-11 version of the 409. The original "High Ports" and and Air Gap intake, 427CI version of the 409 with a bigger cam also. Most had aluminum sheet metal fronts.
63-64 425 HP dual quad "plain" 409s also had a bigger cam than the 409hp 409 62s
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#12
12-10-2023, 11:47 AM
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A friend of mine was racing at Lions with us and I know he had a arm in his 409.Tom
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#13
12-10-2023, 10:29 PM
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My 63 Tempest-3450# with me . 980 heads-859 with 750 eddies-th400-390 gears and 26" tires solid roller with good weather runs 11.30's.
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#14
12-10-2023, 10:34 PM
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My 63 tempest @ 3450# with me will run 11.30's. 980 heads-859 2x4 with 750 eddies-solid roller-3.90 gears-26" tires-4" stock crank-th400.
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#15
12-11-2023, 04:24 PM
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I was reading yesterday about the chevy mark II big block. They had one of these special engines( different than later big blocks which I wasnt a where) in Mickey Thompsons corvette. Hmm wondering if that's the same car that got passed by the 63 Lemans at Daytona? From article chevy wanted to win stock car racing... the z11 was zoras project.
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