I have a 92 GT 5 speed 308 geared stock engine does have smog deleted with PS and AC. Get 23 MPG I drive this Car 2000 miles a month its a DD. 1400 miles are going to work on the highway.
Engine has 165k miles on it so I want a new motor.
Found a good deal on a stock block 347 going to add my GT40 heads off my cobra they have, upgraded dual springs, 3 angle, undercut valves. Good for a .552 lift Max (Will have Cobra intake 280 cfms T-moss ported. 65mm TB from cobra. also 1 3/4 shorties, Stock original cat H pipe) May try 327 gears later for better MPG and maybe 273 if the 327 get worse.
Best I ever got Stock 91 GT cam with 1.72 rockers 327 gears 27 MPG. 5 speed
Looking for a cam to give me best MPG not HP. Car make 220hp now thinking it may make 300hp after I'm cool with that just look for best MPG.
My thoughts
My stock cobra cam
270/270 .479 lift w/1.7 (.282" lobe)
Cam thats in car 92 GT cam
But with 1.7 rockers not sure how the new math comes out. 276/266 .444 lift w/1.6 (.278" lobe)
Explorer 5.0
256 / 266 0.422 / 0.448 lift w/ 1.6 But again would be 1.7 rockers not sure the math.
Trickflow stage 1
275/279 .499"/.510" w/ 1.6 But again would be 1.7 rockers not sure the math.
What do y'all think for a off the shelf for best MPG NOT HP If I can get better than 23mpg that would be great
Engine has 165k miles on it so I want a new motor.
Found a good deal on a stock block 347 going to add my GT40 heads off my cobra they have, upgraded dual springs, 3 angle, undercut valves. Good for a .552 lift Max (Will have Cobra intake 280 cfms T-moss ported. 65mm TB from cobra. also 1 3/4 shorties, Stock original cat H pipe) May try 327 gears later for better MPG and maybe 273 if the 327 get worse.
Best I ever got Stock 91 GT cam with 1.72 rockers 327 gears 27 MPG. 5 speed
Looking for a cam to give me best MPG not HP. Car make 220hp now thinking it may make 300hp after I'm cool with that just look for best MPG.
My thoughts
My stock cobra cam
270/270 .479 lift w/1.7 (.282" lobe)
Cam thats in car 92 GT cam
But with 1.7 rockers not sure how the new math comes out. 276/266 .444 lift w/1.6 (.278" lobe)
Explorer 5.0
256 / 266 0.422 / 0.448 lift w/ 1.6 But again would be 1.7 rockers not sure the math.
Trickflow stage 1
275/279 .499"/.510" w/ 1.6 But again would be 1.7 rockers not sure the math.
What do y'all think for a off the shelf for best MPG NOT HP If I can get better than 23mpg that would be great