Valve train choices...
Thread Starter
Staging Lane
Joined: Dec 2010
Posts: 79
Likes: 0
From: So Cal
Valve train choices... After research on here and other sites, I'm pretty set on Powell Machine 243 style heads. Building a street/strip 800 whp twin turbo stock cubic inch 5.3 LC9, backed by a T56. I'm thinking 2.00" Stainless intake (should I go hollow stem?), 1.60" inconel (should I go hollow stem here also?). Dual spring or single? Spring height? (suggestions on cam lift). Titanium or Steel?, etc...
Opinions on how to best fit out a bare set of ported heads for boost. Any other info on my potential combo needed to help assist on assembly? Thanks.
Opinions on how to best fit out a bare set of ported heads for boost. Any other info on my potential combo needed to help assist on assembly? Thanks.
Id definately go with a set of titanium duals if u can afford them. A set from BTR or PAC will work perfect.
as for the valves i wouldnt go hollow. They are bad about braking with serious power. I would probably try something like stainless valves or stock replacements. Your choice. Just my .02
as for the valves i wouldnt go hollow. They are bad about braking with serious power. I would probably try something like stainless valves or stock replacements. Your choice. Just my .02
Thread Starter
Staging Lane
Joined: Dec 2010
Posts: 79
Likes: 0
From: So Cal
Question. If you maximize efficiency of the NA engine you should require less boost to accomplish the same horsepower correct? It should also have less chance of detonation at a lower boost level during peak power along with better response/power off boost for a street driven car correct? Totally new to boost so I need some help here. Thanks.
Last edited by Dead Hook; Jun 28, 2018 at 07:34 PM.
PSI LS 1511 ML Springs Hi DH, PLEASE do not be a FOOL AND believe the BAD TECH here at LS-1 Tech.
A set of PSI LS-1511-ML springs would be a perfect fit for your requirement.
I can supply OR buy direct !
I too agree, fit some S/S Valves, I sell BBB Valves
Lance
A set of PSI LS-1511-ML springs would be a perfect fit for your requirement.
I can supply OR buy direct !
I too agree, fit some S/S Valves, I sell BBB Valves
Lance
