Got a 408 with TFS 235 Heads - Come on in!
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Staging Lane
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Got a 408 with TFS 235 Heads - Come on in!
I am in the process of building my 408 and almost have it planned out. Static compression ratio will be about 10.7-10.9 and I am going to port my stock oil pump. I have not decided on a cam yet. Here it goes:
This is what I have bought so far (short block):
6.0l iron block 4.030" bore
Eagle Crank
Eagle H-beam rods w/ARP bolts
Mahle pistons with file fit rings
King Alecular main and rod bearings
This is what I am ordering tomorrow:
Trick Flow 235 70cc heads
Yella Terra 1.7 rocker arms
Here is what I will be ordering once the long block is built:
Fast 92/92 intake and T/B
F-body oil pan assy (pan/pickup/windage tray)
Injectors (~50-60 lb/hr) and fuel rails
Here is what I need help deciding on quick:
1. What head gaskets do you use on a 4.030" bore with TFS 235 heads?
I have searched and some people say ls7 head gaskets (some say that some water passage holes do not line up), l92 head gaskets, etc. The machine shop said that I must use a MLS (multi-layered steel) gasket preferrably about 0.040" compressed thickness. What are you using?
2. Will a new set of GM head bolts and main bolts be acceptable for a motor that will be n/a and street driven? The engine shop said that is perfectly ok becuase I have a reasonable compression ratio and will never see nitrous.
Does this look like a solid street build? I bet that you will be surprised to see this going in a 1950 Chevy truck with a 3000 stalled A4.
Please comment on my build, any input would be appreciated.
This is what I have bought so far (short block):
6.0l iron block 4.030" bore
Eagle Crank
Eagle H-beam rods w/ARP bolts
Mahle pistons with file fit rings
King Alecular main and rod bearings
This is what I am ordering tomorrow:
Trick Flow 235 70cc heads
Yella Terra 1.7 rocker arms
Here is what I will be ordering once the long block is built:
Fast 92/92 intake and T/B
F-body oil pan assy (pan/pickup/windage tray)
Injectors (~50-60 lb/hr) and fuel rails
Here is what I need help deciding on quick:
1. What head gaskets do you use on a 4.030" bore with TFS 235 heads?
I have searched and some people say ls7 head gaskets (some say that some water passage holes do not line up), l92 head gaskets, etc. The machine shop said that I must use a MLS (multi-layered steel) gasket preferrably about 0.040" compressed thickness. What are you using?
2. Will a new set of GM head bolts and main bolts be acceptable for a motor that will be n/a and street driven? The engine shop said that is perfectly ok becuase I have a reasonable compression ratio and will never see nitrous.
Does this look like a solid street build? I bet that you will be surprised to see this going in a 1950 Chevy truck with a 3000 stalled A4.
Please comment on my build, any input would be appreciated.
#3
Staging Lane
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I searched and found that the TFS head needs a larger bore head gasket than the 4.030" to seal the combustion chamber and clear the large valves. The recomended gasket bore is more like 4.090"-4.100", is this true?