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#1
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62 catalina 421 headers
Was on the Doug's Headers website and could not find a set for my 62 Catalina 421 car....do the make them or does mad-dog headers make a set. Thanks Tom
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#2
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They are no diff than 389 headers?Did you find them?Tom
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#3
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Got it thanks. ..
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#4
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64 Cat 389
Can't find them for mine anywhere I look?
Did he stop making them for before 1965?
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Jeff |
#5
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I just went to his site,they make 61-64 $650.Tom
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#6
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Got a link? I can't seem to find them. Unless I'm not at the correct site
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Jeff |
#7
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#8
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My MAD DOG headers bolted on my '62 really nicely. When I bought them I was told they would.
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#9
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Link
Thanks for the link. As I thought I was at the wrong site.
Ram Yak II I'm hoping they doing the same for me in my 64 Cat.
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Jeff |
#10
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Unless the car is going to be a serious race car there is no way I would run headers over the long branch on a street car.FWIW,Tom
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#11
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I was just going to say exactly what Tom S above said. My 62 Cat ran no faster with 4 tube headers versus long branch with a foot or so extension on them. As a general rule, I would never again run tube headers on a street car. Spend the money on a set of reproduction long branches and you will be much happier in the long and short term. My 62 would run 14.26 quarters time and time again. Probably due the skilled driver.
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#12
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Long branch
Now where do I look for them.
My car is only is only going to be a mildly wild street car. So always thought headers were the way to go. It's exhausting now through the stock mans and when they put a new exhaust system on it only has 2" pipes and the bend at the bottom is a sharp 90 degree. It's got to be restricted bad.
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Jeff |
#13
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Ames sells them along with Ram Air restorations.Same as gen one firebirds except for the oil filter adapter I believe.Our big car take the thicker adapter.Tom
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#14
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Those Maddog headers are beautiful!
+1 on the LBHOs for a street car unless the look or sound of headers is a goal. |
#15
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Quote:
That makes me think that they're a no-go for a '64 chassis. If that's true then you have only two choices for manifolds. One being the HO manifolds used on cars equipped with the 421 HO engines, rare and expensive and not reproduced. The other choice that's far more affordable would be keeping your current stock exhaust manifolds, but you're not restricted to using 2" exhaust pipes. A 2-1/4" pipe fits and seals perfectly, just use a short section of this and flare the end of it to mate up with a 2-1/2" mandrel bent 90 degree pipe and then run the rest of the exhaust with 2-1/2" pipe. You'd be surprised at how well a mild performance engine responds to a nice free-flowing exhaust even when still equipped with the standard log exhaust manifolds. Some log manifold tech you might find interesting:http://forums.maxperformanceinc.com/...d.php?t=630943
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1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
#16
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Quote:
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“It takes considerable knowledge just to realize the extent of your own ignorance.” Dr. Thomas Sowell |
#17
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Bart,I have them on my 62 GP.Tom
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#18
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I see, I guess I was going by my old H-O Racing parts book. They didn't mention fitment back to 1960, but if it's true then Jeff's only about $600 away from a 15 or 20 HP gain.
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1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
#19
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Geeking out about '65+ LBHOs in '61 - '64 cars
Great pic, Bart! This is getting saved and the idea applied to my Bonneville. ...I just went thru the linked thread. GREAT info there.
Not taking undue credit here, but I successfully fit a pair of the '65+ LBHOs on my '62 GP in 1996...the engine was a '66 389 & starter, with new OEM motor mounts, '62 bell housing and clutch linkage behind it. Paul at R.A.R.E. hadn't had anyone report success prior to this. Then in '06 I did the same thing to the gold '62 Cat beater- it had an all-'62 driveline & starter and sagged-out original motor mounts. THAT required a little more finesse but that car is still on the road WITH that exhaust system. Last edited by Engine-Ear; 03-31-2017 at 10:06 AM. |
#20
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As Tom said, I have the longbranch manifolds on my 61 Ventura, fit great. At first glance they resemble SD manifolds.
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Tommy's Early Muscle Cars 1959 Pontiac Catalina Sport Coupe 3x2 3 speed manual 1960 Pontiac Ventura 425A / 4 speed 1961 Pontiac Catalina Tri Power / 4 speed 1961 Ford Starliner 390 / 401/ 4 speed 1962 Corvette 327/300 / 4 speed 1962 Gran Prix Tri Power / 4 speed 1963 Pontiac Catalina 421/ 4 speed 1964 Pontiac Catalina 3x2 / 4 speed |
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