will these valve springs work ?
02-03-2012, 08:53 AM
#1
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will these valve springs work ?
http://www.ebay.com/itm/Z28-Valve-Sp...item1c21f93d44
i'm putting a lt4 hotcam in my 305 tbi rs . will these fit without any headwork ? what are the stock spring size ? thanks
i'm putting a lt4 hotcam in my 305 tbi rs . will these fit without any headwork ? what are the stock spring size ? thanks
02-03-2012, 12:52 PM
#3
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Car: 91 Z28 / 04 GTO
Engine: GMPP 350 TPI / LS1
Transmission: WC T5 / T56
Axle/Gears: 3.23 / 3.46
Re: will these valve springs work ?
no, the retainer will hit the guide. You need to run behive springs if you dont want head work. For a 305 tbi you're better off running an L98 cam and doing a motor swap later. .550 springs are too close to the .540 lift on that cam anyway.
02-03-2012, 05:01 PM
#4
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Re: will these valve springs work ?
do you know the part number for beehive springs ?
the lt4 hotcam lift is only .495 with 1.5 rockers an .528 with 1.6 rockers .
eventually i'll change the bottom end but for this summer i want to run a nice cam an turbo it . i may even switch to vortec heads . thanks for the reply
the lt4 hotcam lift is only .495 with 1.5 rockers an .528 with 1.6 rockers .
eventually i'll change the bottom end but for this summer i want to run a nice cam an turbo it . i may even switch to vortec heads . thanks for the reply
Last edited by freaky; 02-03-2012 at 05:16 PM.
05-04-2012, 07:51 AM
#5
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Re: will these valve springs work ?
anybody else know of a spring i can run with a lt4 hotcam an do do no other head work ?
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