862 heads any good?
So many folks get caught up with keeping up with the Jones' that they fail to realize just how good and flexible the small-valve heads are by production and aftermarket standards.
It is the same nonsense that sold ported FAST intakes, NW throttle bodies, bullshit MAFs, SLP smooth bellows, KOOKS headers, Comp's whiney cams and rapidly worn trunions, top secret cam specs... and so on. This site propogates vendor bias - but folks are waking up.
A sensible build around stock, or reworked stock parts, with a nice cam and affordable supporting mods - tuned and driven well - will be much more satisfying to the owner and their wallet. A fool and his money are easily separated.
If you have money to burn, or like carrying debt, keep buying into the hype. Because entry-level performance parts now exist that perform well if used properly.
It is the same nonsense that sold ported FAST intakes, NW throttle bodies, bullshit MAFs, SLP smooth bellows, KOOKS headers, Comp's whiney cams and rapidly worn trunions, top secret cam specs... and so on. This site propogates vendor bias - but folks are waking up.
A sensible build around stock, or reworked stock parts, with a nice cam and affordable supporting mods - tuned and driven well - will be much more satisfying to the owner and their wallet. A fool and his money are easily separated.
If you have money to burn, or like carrying debt, keep buying into the hype. Because entry-level performance parts now exist that perform well if used properly.
So many folks get caught up with keeping up with the Jones' that they fail to realize just how good and flexible the small-valve heads are by production and aftermarket standards.
It is the same nonsense that sold ported FAST intakes, NW throttle bodies, bullshit MAFs, SLP smooth bellows, KOOKS headers, Comp's whiney cams and rapidly worn trunions, top secret cam specs... and so on. This site propogates vendor bias - but folks are waking up.
A sensible build around stock, or reworked stock parts, with a nice cam and affordable supporting mods - tuned and driven well - will be much more satisfying to the owner and their wallet. A fool and his money are easily separated.
If you have money to burn, or like carrying debt, keep buying into the hype. Because entry-level performance parts now exist that perform well if used properly.
It is the same nonsense that sold ported FAST intakes, NW throttle bodies, bullshit MAFs, SLP smooth bellows, KOOKS headers, Comp's whiney cams and rapidly worn trunions, top secret cam specs... and so on. This site propogates vendor bias - but folks are waking up.
A sensible build around stock, or reworked stock parts, with a nice cam and affordable supporting mods - tuned and driven well - will be much more satisfying to the owner and their wallet. A fool and his money are easily separated.
If you have money to burn, or like carrying debt, keep buying into the hype. Because entry-level performance parts now exist that perform well if used properly.
TECH Regular
Joined: Jan 2007
Posts: 411
Likes: 1
From: Louisville KY
TECH Regular
Joined: Jan 2007
Posts: 411
Likes: 1
From: Louisville KY
Looks like bottom of the barrel for flow.
Flows are @500 then @600 lift
GM LS/VORTEC
Cathedral heads
5.3 truck #706/862?
61.2cc 220-230
LS1 #241/853?
67cc 230-235
6.0 truck #317 71.5cc 240-245
#799 64cc 245-250
LS2/LS6 #243/799?
64.5cc 250-260
All exhausts flow 175-200
Trick flow genX 215 cathedral 300@500 320@600
Trick flow genX 225 cathedral
315@500 340@600
Rec port heads
LSA 863
LY6
LS3 821 Hollow stem
L92/L99 823 & 5364
300@500 315@600
Exhaust 205 & 215
LS7 330@500 350-370@600
Exhaust 210-225
Flows are @500 then @600 lift
GM LS/VORTEC
Cathedral heads
5.3 truck #706/862?
61.2cc 220-230
LS1 #241/853?
67cc 230-235
6.0 truck #317 71.5cc 240-245
#799 64cc 245-250
LS2/LS6 #243/799?
64.5cc 250-260
All exhausts flow 175-200
Trick flow genX 215 cathedral 300@500 320@600
Trick flow genX 225 cathedral
315@500 340@600
Rec port heads
LSA 863
LY6
LS3 821 Hollow stem
L92/L99 823 & 5364
300@500 315@600
Exhaust 205 & 215
LS7 330@500 350-370@600
Exhaust 210-225
Heads 
TECH Senior Member
Joined: Jun 2016
Posts: 22,299
Likes: 3,619
From: Central Cal.
Trick Flow heads would be overkill here at a much higher cost, not cheaper.
Build your post counts somewhere else.
Last edited by G Atsma; Aug 14, 2023 at 12:12 PM.
