I'm looking to buy a U20 header that fit the example of the pics I included. Unfortunately the owner of the pic will not sell. Maybe a possible lead to who might have info. Andrew
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Daryl it is a racing header and yes it's a U20 head. It was designed back in the 60tys but was used for quite some time..but just racing. It comes out under the frame and one tube over the frame to exit on the left side under the body and then dumped right in front of the left rear tire .
Here’s a link about some headers made in Australia which are highly regarded. These are quite expensive especially when you add in the shipping. Keep in mind that the best headers in the world won’t make much difference unless the whole engine is designed around them. Another thing to consider is where they make their power. Giving up low and mid range just to have screaming power at 6,000 plus rpm’s is not going to be fun on a street driven car. viewtopic.php?t=31823
Mike M
Old enough to know better, too old to remember why!
1969 2000 solex mine since 1972, under resurrection. (Finally resurrected as of spring 2019!)
1969 Porsche 911s -worth more, but not as valuable! Gone!
2017 Lotus Evora 400 - Oh my!!
Yes it is BRE style header. I can have one made but its pricey. It's been dynoed and on that engine it was worth 14hp. I'm building a pretty radical stroker u20 and this style header is going to be for a higher rpm range then 6000. It's also exits out of the car frame and 1 tube over the top of the frame to end exiting at the left rear tire..also adding to the vintage direction for the build. I will probably have to have it fabricated. Andrew
All great info..I will do my do diligence..as the engine is going to be pretty involved. Over 8000rpm for road racing and will be a stroker. But very much agreed every engine is different depending on the build. Thank you very helpful. Andrew
Andrew Griffith wrote: ↑Thu Jan 26, 2023 4:55 pm
All great info..I will do my do diligence..as the engine is going to be pretty involved. Over 8000rpm for road racing and will be a stroker. But very much agreed every engine is different depending on the build. Thank you very helpful. Andrew
Andrew,
If you plan on vintage racing there are certain things that are not allowed so I would build the car to the rule set so you have plenty of places to race. If you have any questions let me know.