Need help on what kind of cam
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Member
Joined: Nov 2001
Posts: 109
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From: Elk Grove, IL
Need help on what kind of cam
I am lookin to buy a 350 shortblock...probably the L31
http://www.sdpc2000.com/cart.asp?act...id=514&pid=621
My question is what kind of cam do I use, the hydraulic roller or the flat tappet. Does it depend on the heads I buy? I need help in buildin my engine.. I plan to keep the TPI if it helps at all.
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1986 Metallic Blue IROC-Z
80k miles, 305 TPI
Mods:
-Edelbrock Hi-Flow baseplate
-Dynomax Cat-back
-gutted MAF
-K&N's
-airfoil
-shiftkit
http://www.sdpc2000.com/cart.asp?act...id=514&pid=621
My question is what kind of cam do I use, the hydraulic roller or the flat tappet. Does it depend on the heads I buy? I need help in buildin my engine.. I plan to keep the TPI if it helps at all.
------------------
1986 Metallic Blue IROC-Z
80k miles, 305 TPI
Mods:
-Edelbrock Hi-Flow baseplate
-Dynomax Cat-back
-gutted MAF
-K&N's
-airfoil
-shiftkit
Supreme Member
Joined: May 2001
Posts: 1,118
Likes: 0
From: Amelia, OH, USA
i like the ZZ3 and ZZ4 cams
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88 Iroc-Z L98, rebuilt T5, ported manifold and plenum, built 355 shortblock, ZZ3 cam, Ported S/R Torquer Heads (2.02/1.60), AFPR, Hedman 1 5/8" 3" collector, 3" y pipe, !Cat, Edelbrock Catback, 3.42 gears WAITING FOR TIMES!!
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88 Iroc-Z L98, rebuilt T5, ported manifold and plenum, built 355 shortblock, ZZ3 cam, Ported S/R Torquer Heads (2.02/1.60), AFPR, Hedman 1 5/8" 3" collector, 3" y pipe, !Cat, Edelbrock Catback, 3.42 gears WAITING FOR TIMES!!
Supreme Member
Joined: Aug 2001
Posts: 2,747
Likes: 0
From: Orygun
Depends on the year of the block first off, so you know if you're going flat tappet or roller, if its a flat tappet block you can buy after market roller lifters at about $350 a set.
If its a 350 the general rule is to stay under .220 duration @.05, as much lift as your valve train can last (not over .470 stock) and your lsa from 112-114 for tpi, on carb you can go under 112 but that will be fairly radical.
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1985 Iroc-z, 14 second 305, new engine in the works.
If its a 350 the general rule is to stay under .220 duration @.05, as much lift as your valve train can last (not over .470 stock) and your lsa from 112-114 for tpi, on carb you can go under 112 but that will be fairly radical.
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1985 Iroc-z, 14 second 305, new engine in the works.
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