89GTnoob

Local has some GT40p heads for 225. Will I run into problems with an E303 and 24 lbs injectors (already have 255lph pump). How about my bbk shorty equal lengths?

qwik347

dont waste ur time with them. u specific headers for those headers.

badlx87

I think gt40p's need Mac shorties or FRPP headers. BBK will now work with them to my knowledge.

nitrous_bob

i'd spend the extra $75 and get real 40's

what probs do you think you MIGHT have ? the valves are tiny and you are gonna add like 20 hp ? and yes the shorties suck.... go long tube

TrimDrip

I am about to install a junkyard motor with those heads. I must say, I am not impressed. Anyways, the bbk shortys will work with 90 degree plug wires but, it is close. It will be hard on the wire without boot protectors.

89GTnoob

By real 40s do you mean the GT40 and not the GT40p? I thought the GT40p out performed the regular gt40?

95_302_StangMan

BBK shorties will work. I have them on my 95. It's a little tight getting a couple plugs in and out but def work with minimal effort. As far as power goes. If you want serious get up and go get some aluminum heads. (TFS AFR ect.) If money is too tight they beat stock easily. I'm making just under 300 to the wheels with mine. If I had the money to throw at it I would get a set of Trick Flows and 1.7 roller rockers and I would probably gain 60 to the wheels or more.

95_302_StangMan

Flow charts for the gt40p's are better. Also smaller chambers on the p's = more compression.

nitrous_bob

some like to think that

p's have smaller valves so how they can outflow is beyond me. and i could care less about "flow" really, velocity is way more important

i have yet to see a car run well with p heads. on the other hand i have watched countless cars dip into the 11's with gt40's and a single power adder on the stock short block

but thats my opinion...... and i have owned 5 5.0's since 1990 so im not new

89GTnoob

I'm now on a budget build and am not really comfortable dishing out atleast 1000 for heads. Any HP estimates on GT40s? I think even 30hp for ~300 bucks is considered worth it, is it not? I think a pair of GT40s will compliment my engine well in my desired goal of a cruiser with a little bit more of a punch. I'm not even taking the car to the track, but am use to it's power and only want a little bit more. It falls on it's face after ~5500. Will heads help this problem, or is my cam to blame?