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Help with engine build up please.


j_eremy

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Hi,

I have a few questions for you guys.

I am building my 2.8l right now and here is what I have done and where I am stuck at..

it is a F54 block stock bore, new rings, bearings, balanced ,ect on the bottom end.

I have already installed my 4.11 from a 83 200 sx and am running my stock 81 trans, 5 speed. non turbo.

I have a arizona intake manifold for a holly 390 cfm. didnt like my su's

but I am having thoughts about weither or not to use a N47 or MN47 head. the cam I am going to use is a isky stage 3

the MN47 head will give me a comp of 11:3:1 right? and the N47 about 10:1

 

this is going to be a weekend car. what would the pros and cons be between these to heads.

am thinking with the N47, it would be a little more forgiving all around due to the lower compression ratio. Ie heat, Pinging ,Frying rings?

also if I use the Mn47 head with this combo, will I have the dead below 3k sendrome?

thanks Jeremy

7/80 280zx non turbo 5speed t top.

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