My project truck 1981 f250 300 l6 4.9

This is my papa`s old 81 f250. I installed an comp truck power cam and lifters, offy intake, efi manifolds and an 470cfm holley Truck Avenger Carb.

Category:

Autos & Vehicles

Tags:

• 1981
• ford
• F250
• 300
• 4.9l
• 300ci

[insanexskillz]

how did u get your intake manifold out? i took out the 6 or so bolts on top but it just wont come out , n i cant find anymore. help please.

[tbg1977]

@insanexskillz Their are bolts under the manifolds Intake and exhaust to hold them both to the head.

[saludahead]

Put an X pipe on the exhaust pipes to even out the pulses, and get some extra scavenging between the manifolds. Good for torque, and horsepower!

[tbg1977]

@saludahead Its a single exhaust with a y pipe. An x pipe isnt nessesary.

[bigdumidiot]

What kind of paint is on the intake ?

[tbg1977]

@bigdumidiot NONE its bare aluminium

[theotherbush]

i love it no matter what you do to a 300 it still sounds like a 300

[390merc65]

nice truck..but you need to get rid of that oil cap and put a breather type cap on it

[keith91z28]

What kind of mpg are you getting currently?

[laclepabon]

beatiful... would it work on my 82 f150 ???

[FlamingTightyWhiteis]

@dirteeter32 oh,i had the EFI 4.9,ran amazingly,but it was starved for fuel.hope everything works out with it,i honestly would rather to have the carburetted 4.9,it was a northern truck in the south,so it was set to a higher climate and ran a little more rich,or lean,i dont honestly know,and i never could change it.i ended up selling mine though,i have my old buick to travel in :)

[dirteeter32]

@FlamingTightyWhiteis

Well they had to have been fine cuase i swap back in my old manifolds and it ran fine weird. But i just purchased a 4 barrel intake and holly carb same offy intake as you got so when i install it i'll see what happens.

[FlamingTightyWhiteis]

@dirteeter32 check the fuel filters,my 87 f150s tanks were rusted to hell and the in tank filters were clogged almost completely.drop the tanks and check them,i ended up putting newer ones under it.

[dirteeter32]

Dam i did the swap to my truck but it would idle at all just kept dieing, any suggestions?

[killakobra]

same manifolkd setup as i have except, i went with the dual plane instead of the "C" and i ran dual exhaust. definatly brings them alive.

[Shadofx]

That looks and sounds great!..best sounding 300 I've ever heard..can't wait to do the intake and efi manifolds on my bronco...soon..very soon!