lets get this straight

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Feb 20, 2003 | 12:44 PM

mikobu3

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lets get this straight

when i put the new 1.94 valves 1.65 what will i need , what will be reusable , do i need to change the pistons, how much will this cost, and will this help in performance, will the car run right
thanks

1986 305 tpi lb9

Feb 20, 2003 | 08:33 PM

kevinc

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Joined: May 2000

Posts: 2,963

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Car: 1982 Z28

Engine: LS1

Transmission: T56

Wow. Just don't know where to start...you planning to do the whole job yourself with nothing but this board as your reference material?

Feb 20, 2003 | 09:54 PM

mikobu3

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no , my mechanic is going to do it i just want to make sure i get all the facts straight ,, i no i have to put the bigger valves in what else am i suppose to do

Feb 20, 2003 | 10:21 PM

kevinc

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Joined: May 2000

Posts: 2,963

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Car: 1982 Z28

Engine: LS1

Transmission: T56

Sounds like there are two things you need to do, given a mechanic is going to do it:

1.) Take it to the mechanic.
2.) Pay.

Feb 20, 2003 | 10:26 PM

Free Bird

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From: Dale City, VA

Car: 91 GTA and 85 IROC

Engine: 355

Transmission: gear jammer

Axle/Gears: 4.11

hahaha

Anyway, you'll need new valves. How much is he charging you? I didn't think 305 heads were all that ecpensive. Why not just buy a set of heads and make even more power.

Feb 20, 2003 | 10:51 PM

fun Pain

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Joined: Sep 2000

Posts: 464

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From: Crestline,OH

Car: 1987 Formula 350

Engine: 6.0 boost and smak

Transmission: 4l80e

Axle/Gears: 9bolt 3.27

that is what i vote for, new heads if your mechanic is doing it he has less chance of messing up you heads, and then you have to anyways

Feb 20, 2003 | 10:59 PM

iroc22

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Joined: Jan 2001

Posts: 4,415

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From: Surrey, BC

I don't think just changing your valve size from 1.84 to 1.94 is really worth the money. Spend a little more money and at least get the heads cleaned up, port/polished and get the bigger valves installed.