Valves and heads?
Thread Starter
Racer
Joined: Sep 2019
Posts: 456
Likes: 198
From: Toronto
Valves and heads?
I've been searching around for a set of heads to top off the LSR block being used to my FI build. I've come across a set of second hand MAST LS7 heads and I have a concern. The seller says the heads are using Ti valves for both intake and exhaust, I'm aware that Ti is preferred for the intake but have found very little regarding Ti exhaust valves...... so Ti exhaust valves..... good or no good? Less of a concern I think but the heads have been slightly milled to decrease the chamber size but I am assuming since I have not ordered pistons yet adjustments can be made to the proposed dish size to offset that?
Thread Starter
Racer
Joined: Sep 2019
Posts: 456
Likes: 198
From: Toronto
I think I'm going to go ahead with a set of Mast 285's, their website however offers very little information about whats in the heads.... they sell assembled heads which I assume are the cheapest valves but there is no information on that. The bare heads have options for valves and springs but again very little other info, I've emailed them some questions. If I ordered the bare heads with valves and springs do they then come assembled? Am I to assume that the valves, guides and springs are of good quality? I'm pretty new to this LS platform and heads in general.
Drifting
Joined: Jul 2013
Posts: 1,342
Likes: 89
From: Maryland
I think I'm going to go ahead with a set of Mast 285's, their website however offers very little information about whats in the heads.... they sell assembled heads which I assume are the cheapest valves but there is no information on that. The bare heads have options for valves and springs but again very little other info, I've emailed them some questions. If I ordered the bare heads with valves and springs do they then come assembled? Am I to assume that the valves, guides and springs are of good quality? I'm pretty new to this LS platform and heads in general.
Thread Starter
Racer
Joined: Sep 2019
Posts: 456
Likes: 198
From: Toronto
Spoke with Mast today, got some info and now to research. Titanium valves are made by Victory and are CRN coated with a hardend tip, the Inconel valves are a premium Inconel valve similar to offerings from REV and Ferrea. Bronze guides from CHE is what they offer on tue higher end of things.
Then there is where to go rockers and such, I really don't want a bunch of valvetrain noise and will not be running a huge cam.
Then there is where to go rockers and such, I really don't want a bunch of valvetrain noise and will not be running a huge cam.
