need help, header flanges are smaller then exhaust ports!!!
#1
Junior Member
APPRENTICE
Thread Starter
Join Date: Apr 2009
Posts: 12
need help, header flanges are smaller then exhaust ports!!!
need professional advice!!!!! i just bought a new engine wit a set of 210cc pro topline heads and headers that i have on my 93 ranger are 1-1/2 tube diameter but they are smaller then exhaust ports on my heads...can anyone estimate how much hp will be lost. or any ideas on what i should do... if i don't change headers what will happen?
#2
Member
JUNIOR BUILDER
Join Date: Aug 2004
Posts: 96
header
there is no way to tell you how much hp you will lose, if your flange is not blocking the port to much it might not matter and you can grind the flange aliitle to make it flow better just becareful not to go to far as you will cause the tube to leak where you grind it ...
#5
Senior Member
RACING JUNKIE
Join Date: Nov 2005
Location: Staunton, IL
Posts: 943
Or you can do like my brother did on his dragster. You buy a thick blank spacer to go between the header and the head. You mark the port in one side and the header on the other. You use a die grinder to make a nice transition from one to the other.
#6
Senior Member
DYNO OPERATOR
Join Date: Aug 2007
Location: Lost Creek, WV
Posts: 533
Originally Posted by JEFF69Z28
buy new headers,that is the correct thing to do,call lemons and he will make you a set that beats all others hands down.
TS1955