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Planned mods to stock 350 tbi.

How much do you think it cost to have a valve job, better springs, and a mild port on my stock 193 heads? I'll call comp cams after I get the heads worked on.

Is that salad bowl air intake really worth it?
Performer RPM intake is going on for sure.
Am I missing anything else?
 
i'm with thunder. stock heads would be fine w/ a mild cam. i put matched edelbrock parts on mine. performer intake, cam, 1.6 roller rockers, better springs, dual exhaust w/ dynomax headers. i like the idea of sticking with 1 company because their stuff is designed to work together. the cam and exhaust really woke up the truck. pulls hard from 1600-3200 rpm. the cam really kicks in about 1800, which is right where it runs on the highway at 65 mph w/ 4.56s and 35" tires
 
runamok151 said:
i'm with thunder. stock heads would be fine w/ a mild cam. i put matched edelbrock parts on mine. performer intake, cam, 1.6 roller rockers, better springs, dual exhaust w/ dynomax headers. i like the idea of sticking with 1 company because their stuff is designed to work together. the cam and exhaust really woke up the truck. pulls hard from 1600-3200 rpm. the cam really kicks in about 1800, which is right where it runs on the highway at 65 mph w/ 4.56s and 35" tires
Click to expand...
is your truck a tbi ?
 
A valve job at my shop starts at $200.00 for the pair and goes up from there depending on what else might be needed.
 
unless your rig is off road only you might not be able to pass smog with vortec heads. i just moved out of cali and was thinking of going with the vortecs, and remember reading somthing about smog issues.sombody correct me if im wrong.
 
1990k5fan said:
How much do you think it cost to have a valve job, better springs, and a mild port on my stock 193 heads? I'll call comp cams after I get the heads worked on.

Is that salad bowl air intake really worth it?
Performer RPM intake is going on for sure.
Am I missing anything else?
Click to expand...

To do a mild port job= Gasket match to the intake, Clean up casting flash and bumps in the ports, clean up the swirl ramps and maby remove a small ammount of metal and smooth the tips. Should not cost much more than 200 over the cost of the valve job. You dont need any bowl work unshrouding or polishing. Thats what takes time and drives the cost up. After market heads or the Vortec swap will cost you $800-$1200 depending on the heads you buy.
building a set of TBI heads should be around 500
A basic port job on a set of 193s can give 30 HP +-. Most people think stock TBI heads are crap but acually they are very good heads for a truck and respond very well to porting.
BTY mild porting real easy thing to do yourself all you need is a die grinder and a couple of burrs. I do all my own head porting. You dont need a lot of experience or a flow bench to do mild port work as I described.
And
Yes the salad bowl is worth it. They have the most power to $$$$ gains of any TBI mod you can do.
IMO dont use a performer RPM intake. Use the regular edelbrock TBI performer intake. The RPM is designed for mid to high torque. Not good for a low rpm engine.
 
So my dad, a machinist, should most likely beable to port my 193 heads? I'll call and ask him about it. While the heads are off, I should probally get a valve job right?

I'll be ordering parts tonight. Probally best to put all the mods on at once.
 
yes do a valve job. Your dad should certanily be able to port your heads.
Just dont take the swirl ramp out. It is what makes all the torque. You can shave them down a little bit and smooth them to add a little flow.
Altho the combo i gave you in eariler post will run on a stock chip. a custom chip will really make it come alive.
Go here:http://www.tbichips.com
Talk to them about your mods and engine plans.They have the exact chip you need.
They respond better to Email. Sometimes hard to get ahold of over the phone.
 
So by porting my heads and getting a valve job, how much torque and horsepower gain should I be look for?
 
It all depends on what you do to it as far as cam, manifold headders, exhaust, throttle body, ect. But the stock 350 TBI will support around 280 HP. Porting the heads, cam, intake, headers will get you there no problem. Around 280hp 330 torque.
You can make more power with a 600 cfm TB 65 lbhr injectors and a custom chip.
 
Thunder said:
It all depends on what you do to it as far as cam, manifold headders, exhaust, throttle body, ect. But the stock 350 TBI will support around 280 HP. Porting the heads, cam, intake, headers will get you there no problem. Around 280hp 330 torque.
You can make more power with a 600 cfm TB 65 lbhr injectors and a custom chip.
Click to expand...

Well I'm going to port and get a valve job on my 193 heads, performer rpm intake, 1 to 1.6 roller rockers, new cam, and a custom chip. What numbers do you think I'll be pushing?
 
Like Thunder said before don't get the Edelbrock "Performer RPM" series cam. Get the Edelbrock "Performer" series cam for tbi.
 
i myself and in the same position

can i run regular headers and weld in a nut for the 02 sensor into the lower part of the full lenght header


also i got a custom chip

my engine is cammed and flat top, should i use the fel pro blue head gasket

i think ill habe 340hp,
 
Headers are a bitch. Make sure not to break an exhaust manifold stud off in the cylinder head, one of mine broke off flush, then I broke a screw extractor off in that.
 
just got aqll manifold bolts off nice, one head is off, now to get other head off and they are off to machine shop
 
You can weld an O2 sensor bung into the header collector, you want it as far forward as possible that still "sees" an entire bank of the engine.

Might need a heated O2 sensor, you'd have to scan it and watch to see if it goes into closed loop or not. Mine is unheated, and drops out of closed loop at idle sometimes, but goes closed once the RPM's come up a bit. (IE, driving)
 
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