|
By JPotter57 - 12 Years Ago
|
|
Hey John, I was talking to Glen Henderson the other day about a set of Y block fenderwell headers from Speedway..He says he thinks you run a set on the Hurricane. Is that true? Did any tubes need to be moved? If those headers fit, I will be buying a set from Speedway this weekend, as they have the ceramic coated headers for $279 plus shipping. Let me know your thoughts on these headers, if they work, fit ok, etc. Thanks my friend, hopefully, I'll be at Columbus this year, without my car again, as my glass wont be here until October.
|
|
By Hoosier Hurricane - 12 Years Ago
|
|
James: My fenderwells came from JC Whitney, but they don't have them any more. I believe they are Sandersons, like the junior stockers used to run. I haven't seen anyone else's fenderwells on a '57. The ones I have fit with no modifications however. Sorry I didn't answer sooner, I haven't been able to get on the site all day.
|
|
By The Master Cylinder - 12 Years Ago
|
|
Aren't the Speedway fender well headers for a truck? or am I looking at the wrong headers...
|
|
By JPotter57 - 12 Years Ago
|
|
They are for 53-56 f100, but Glen said he had mocked a pair up on aa 57 car before and they fit ok. If I could verify that they fit well enough, I would get the coated headers, but if I would need to modify them I would just get the standard painted ones and modify them. They look like they will, and Glen believes the ones he used were either Speedways or Patriot, which are actually both built by Patriot I think. Anybody else try this?
|
|
By The Master Cylinder - 12 Years Ago
|
|
Thanks for the info.
|
|
By PF Arcand - 12 Years Ago
|
|
Just curious? Are all the above mentioned headers 1-1/2" diameter? According to J. Mummert, his testing indicates that the Y-Block does not respond well to under 1-5/8"...
|
|
By Hoosier Hurricane - 12 Years Ago
|
|
Paul: My Sandersons on the race car are 1 5/8 OD primaries and 3" collectors with no mufflers or tail pipes. I regularly blow header gaskets. If headers are supposed to be exhaust extractors, why do I have enough pressure in my headers to blow out the gaskets? My next set will be 1 3/4 primaries with maybe 3 1/2 collectors, fenderwell type.
|
|
By PF Arcand - 12 Years Ago
|
|
John: I'm far from a Headers expert.. but maybe your header flanges are to thin a guage?
|
|
By Hoosier Hurricane - 12 Years Ago
|
|
Paul: Could be, they are about 1/4".
|
|
By pegleg - 12 Years Ago
|
the car makes too much HP, That's why!
|
|
By lowrider - 12 Years Ago
|
pegleg (12/26/2012)
the car makes too much HP, That's why! Terrible problem to have.
|
|
By PF Arcand - 12 Years Ago
|
|
Re the problem of header exhaust gasket failures. If you thinks about it, the hot exhaust is being forced out under considerable pressure, while on the intake side the fuel mix is largely drawn in by vacuum, hence the usually bigger intake valves, so, it's no wonder there is more likelyhood of gasket failures on the exhaust side... yes, no?
|
|
By charliemccraney - 12 Years Ago
|
Not necessarily. "Vacuum" in an intake is only a pressure less than atmospheric. For a typical street engine, 20inhg is about 10psi pushing the gasket into the intake. I don't know what the exhaust pressure is in the manifold or header tube but I'm sure it's nothing astronimical. The pressure in the larger pipe, before the muffler can be several psi.
John's case is far from typical, though. He needs to push a whole lot more volume out the exhaust valve than a street car and if the tube diameter is too small, it can kick up the pressure.
|
|
By mercman-49 - 12 Years Ago
|
|
hello,i have sanderson headers to 2" pipes ,instructions said do not use gaskets.use high temp black gasket sealer,never had a leak, these are 53-56-f100 headers on a 292 bored .040 over with dome top pistons&G heads.
|