I thought that title might get some attention

My question, if I were to get my heads worked, (port, polished, the works) and put in different cams, will I lose boost, gain, or would it stay the same? Me and a buddy had this discussion and I wanted another opinion. If you loose boost, you lose power, but you make some of it up with heads and cams. Is it justifiable, the cost that is, of the head job and cams?

Thing is, my buddies truck is a full second faster than my truck. He has heads and a cam on an LT1. I'm pretty sure that's with a 125 shot of nos which could be compared to my charger. I could go 12#'s/3 core setup and be close for a whole lot cheaper than getting a head job.

What's your thoughts?

 

[QUOTE][Will I lose boost if I get a head job? /QUOTE]

I think you will lose semen if you get a head job, and under certin circumstances you will lose wife/girlfriend if she's not involved in the headjob.

 

If everything is done correctly you should see a drop in boost and a gain in power.

 

Increase in power yes.....but is the cost justifiable. Can't I get the same amount or more power even out of a 12#/3 core setup. This would be a heck-of-alot cheaper than a head job.

 

Money ain't everything...

 

boost is nothing more than back pressure, you may loose some boost but all that means is you have gained some cfm's or more air flow. hope this helps you have to watch the advice you get here.

 

Yes,,in a way.
My blower is pulleyed for 17PSI.With the heads and cams I only see 15PSI on the gauge But I picked up about 40HP with the heads and cams.2 PSI will not give you 40 HP.So it was worth it for me.Paid 1800 for heads and cams.

Phil

 

Hey...That's not too bad actually. My buddy has that much ,nearly, in heads heads alone. 1,400-1,500 rings a bell. With the fresh motor and a 125 shot, he ran a 7.92 one time. Yet to do it again.

 

boost is backpressure= that means air waiting to get in. less boost more air getting in............................

 

If you have a big enough turbo it should provide enough compression.

 

I would just suggest Cams. If you put heads/cams on a stock block, if the block goes it may damage the heads. Not to mention that is a big chunk of change. You could do cams for 800 or so and see 40+ rwhp.

 

Thanks Brahmus. Love the L man. If my motor ever goes, and I'm sure it will one of the days, I'm hung between a L swap or just build the 4.6. If I go L, I would have to do a tranny swap instead of build the one I got. I figure the tranny will go before the motor does anyway, so at that point I would probably build the tranny or something. Hopefully none of this happens anytime soon though.

 

Well it all depends what you plan to do with the L motor. I have a stock L block in my screw, pushing most of the bolt-ons and I plan to do cams in the future. I want 450rwhp which is well over 500 closer to 550 at the motor and that is the safe limit of the stock block. All of this is through my 4r70W that has been built turning 38X15.50R20 tires. These trannies can be built to handle alot. Now if you plan to go with a built (forged) L motor and push 600rwhp or so the 4r70W may be the weak point pass being able to build it bullet proof. But don't underestimate a built 4r70W. Mine isn't a monster box, but a bucket of parts I choose and had a reputable shop build. I have over 40K on it, and I drive it like I want to! Now that I have a few other modes of transportation I plan on turning up the heat!