jumbo_1985

I have a 96 impala stock. This guy told me to get a Lt4 hot cam and to port my heads and some 1.6 rr is that a good choice? Also I dont know if he meant port the iron heads or get aluminum ported. Im not to familiar wit any of this so I need help on what I should do???

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Dwayne J

http://www.impalaforums.com/6th-gen-...tml#post239600

I have since made a few more changes and the 11.5 in my sig reflects that.

The HOT cam is more than a decade outdated, the only reason to consider it is to keep the car 100% GM.

The LT4 HOT package with the heads and cam is worth 425fwhp under PERFECT conditions. The Advancedinduction.com heads and cam can give you that number at the rear wheels, meaning a whole LOT more at the flywheels like 80hp or more.

It takes a lot to get a car ready for engine mods though. Full exhaust sytem upgrade, CAI, tranny work, higher stall, gears etc.

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Dwayne
96 Caprice with AI 200cc package
Best et 11.5
Best MPH 116
Just another taxi

BAD IMP

If you want it to get good advice on heads and cams and be fast in the 1/4 mile then listen to Dwayne. He has a lot of experience and proven numbers.

Depends on your goals street or strip? "Full exhaust sytem upgrade, CAI, tranny work, higher stall, gears etc" those are your first basic upgrades.

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1996 Impala SS DCM, Powerdyne Supercharger 6 psi, 3.73s, Snow Performance Water/Meth injection, Borla catback system, PCM reprogam by trifectaperformance.com, Grotyohan long tube headers, Magnaflow high flow cats, Hotchkis springs, front and rear sway bars, Bilstein shocks, Vigilante 3000 stall TC.

BIGAKPHILLY

Just remember, the more stuff you put on that thing, you will need your computer tuned and maybe even put on a dyno. Also, Look around for an LT4 Knock Module for your computer. You will need 1.6 Roller Rockers and most def some exhaust work.

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jumbo_1985

Ok so starting from the motor is not the best way to go? Car has a K&N cai but thats about the only thing. Are edelbrock headers worth buying?

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Dwayne J

The ONLY positive thing about the Edelbrock headers is they are CARB certified and therefore will pass emissions inspection. Other than they they are pretty widely recognized as the WORST available header made for these cars.

Is inspection a concern?

I will tell you right now, most of what Edelbrock offers for these motors is bad, the throttle body is about the only decent part and even then in 52mm I would go with a modified stocker, only buy aftermarket for 58mm.

Their intake manifold has shown potential for a power LOSS, their catback doesn't fit and doesn't last, their shocks while not an engine part leak. That company is surviving on name and good parts they made for OLD engines when the OEMs left a lot of room for improvement.

Things like Hypertech and JET modules are bad too, pretty much anything designed to trick the computer is bad too. Aftermarket MAFs are bad, granatelli being VERY bad.

Point being ask questions of EXPERIENCED people and listen to the answer. You call up Summit/Comp/Jeg's and ask questions you will get bad info.

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Dwayne
96 Caprice with AI 200cc package
Best et 11.5
Best MPH 116
Just another taxi

jumbo_1985

Thanks Dwayne, What headers are good to buy?

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Dwayne J

If visual inspection is NOT a concern I would check out www.focuztech.com
Probably go with 1 5/8" 4into1 headers for most cars. I have the 1 3/4" on my car now.

I would also consider stainless over coating, yes it cost more upfront BUT it is permanent and coatings are NOT, at least not on a car that sees the seasons and miles mine does.

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Dwayne
96 Caprice with AI 200cc package
Best et 11.5
Best MPH 116
Just another taxi