Stock heads

[TrophyHead]

I plan on a KB flowzilla in the future. And was thinking about keeping the stock heads and cam.


I have a GT-40 intake and longtube headers. Should I just roll with the stock heads? Get them freshned up and some chromoly pushrods with 1.7 rr's.

I want to keep this somewhat dumb and (cheap) but still be reliable. What should I have done to the stock heads? Or am I pissing in the wind here?

Thanks

 

[bloopbloob]

i'm running ported stock heads. i'd like to go go SC'd, but i think i'm going to go with a HCI before that happens. I'd rather have a good performing foundation with room for growth, than a max'd out Forced induction combo that puts down similar numbers for a similar price. just my 2c.

+ if you're planning on doing head work for your SC anyways, why not put that money towards a HCI and have some extra $$$ when your done???? (wish i would have!!!)

 

[ninety15.0]

Well i dont quite agree with you bloopbloob. My buddy has a KB flowzilla on his heavier 95 gt. He has full exhaust, CAI, and 3.73's and a ported gt-40 intake with the KB. His heads are stock untouched E7's and his car was an awesome street car.

With the stock heads having such small ports...you get crazy low end port velocity. Pair that with the twin screw blower and you have insane low end torque. B/c of that he made 10# of boost at 2100 rpm!!!! With that kind of boost/torque on the table at that RPM...the car was just a blast to drive!

I think the idea of having them freshened and ported perhaps with a good valve job will really help you out. Just having them ported and getting a good 3 or 5 angle valve job will probably get you about 20-25 Hp when combined with 1.7 roller rockers. Now toss a KB on there and you are looking at some decent power. And its going to be far more streetable/reliable/efficient than a HCI setup. My buddy gets 27mpg on the highway with is combo! As long as you stay out of the boost it drives like a stock car....

 

[PUNISHER RACING]

Our black car has a totally stock longblock with a Vortech S at 10 lbs runs 12.2 and can even dip into the 11's car is stone reliable and has ice cold a/c. The stock heads and cam are not without flaws but work pretty well.

 

[bloopbloob]

Well i dont quite agree with you bloopbloob. My buddy has a KB flowzilla on his heavier 95 gt. He has full exhaust, CAI, and 3.73's and a ported gt-40 intake with the KB. His heads are stock untouched E7's and his car was an awesome street car.

With the stock heads having such small ports...you get crazy low end port velocity. Pair that with the twin screw blower and you have insane low end torque. B/c of that he made 10# of boost at 2100 rpm!!!! With that kind of boost/torque on the table at that RPM...the car was just a blast to drive!

I think the idea of having them freshened and ported perhaps with a good valve job will really help you out. Just having them ported and getting a good 3 or 5 angle valve job will probably get you about 20-25 Hp when combined with 1.7 roller rockers. Now toss a KB on there and you are looking at some decent power. And its going to be far more streetable/reliable/efficient than a HCI setup. My buddy gets 27mpg on the highway with is combo! As long as you stay out of the boost it drives like a stock car....

So does he have to drive at idle to get good mileage???? My point is for $2400 you can get a nice HCI package that can fairly easily net over 300rwhp on an otherwise stock car. To run your friends setup: KB, with LT's, intake and full exhaust might cost upwards of $5000? (thats without an E7 port job) And what kinda hp will you see? probably not far from what the hci puts out, and you are limited by the stock heads and cam. BUT with future mods (which are bound to happen), your hci is ready for more,(while you have an extra $2-3k in your pocket to do so)

 

[ninety15.0]

Well i'll let you know how the cost broke down. He bought a barely used KB flowzilla setup for just over 2k. That came with a ported gt-40 lower. He bought a tweecer RT and wideband setup for about 700 bucks. He bought 42lb injectors and a Lightning MAF for 300 bucks. Thats a total of just over 3k

He already had full exhaust and all that crap. We tuned the car ourselves...and did all the install. after we got the car tuned it ran 12.8 at just over 116. This was with 285's on 18s and a 2.1xx short time. Thats a very impressive MPH and a crappy short time with no full throttle till part way through 2nd gear.

Also just because the blower can make full boost by 2100 doesnt mean that it IS making boost at that engine speed. Boost is only produced under load. So in daily driving it never saw boost...hence the fuel mileage. Plus we tuned it with a tweecer that has 4 separate tunes saved. So we had an economy tune for cheap gas and low timing...then we had a race tune for 93 octane and more timing.

That car had an insane torque curve that no HCI setup could replicate...and if you are looking for a sick street car...thats the way to go.