l98 cam in 305 tbi
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Junior Member
Joined: May 2012
Posts: 42
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From: orlando florida
Car: 1989 camaro RS convertible
Engine: 305 TBI stock
Transmission: 700-r4
Axle/Gears: 2.73
l98 cam in 305 tbi
I have an 89 camaro with 305 tbi...i have the opportunity of purchasing a 1990 l98 cam for a good price. my question is, is this a direct swap? and yes I do have upgrades including open air element, full exhaust from headers back and currently looking for a rear end swap...i also understand I will need to purchase new valve springs. would i buy stock 305 springs, or springs for an l98? thanks for any help
Joined: Sep 2005
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Re: l98 cam in 305 tbi
Yes it is a direct swap.
Your L03 and the L98 are both small block Chevy motors. Springs are the same. You can re-use your existing lifters if they're still good. You do NOT want to spend money on stock springs no matter what, not even if you're using a stock cam. Look at some one of the top-line cam mfr's "entry level" springs, as an example Comp 981. Get the retainers and keepers that go with them, use "positive" seals (NOT umbrella NOT the stock O-rings), and be careful to shim the springs to their recommended height, which for that setup, would be 1.700".
Your L03 and the L98 are both small block Chevy motors. Springs are the same. You can re-use your existing lifters if they're still good. You do NOT want to spend money on stock springs no matter what, not even if you're using a stock cam. Look at some one of the top-line cam mfr's "entry level" springs, as an example Comp 981. Get the retainers and keepers that go with them, use "positive" seals (NOT umbrella NOT the stock O-rings), and be careful to shim the springs to their recommended height, which for that setup, would be 1.700".