Tony 260Z
Club Member
Hi All,
First off, Merry Christmas everyone, and I hope you all have a great New Year.
I'm wondering how to get some more grunt from my Z's.
Here's what I've got available to juggle...
My 260Z has an L28 with an F54 block and P90 head. She's running 2" SU's and a (GDS?) 6-branch header but as far as I know a stock cam. The head did have a little skim a few years ago.
My 240Z has an L28 with an N42 block and N42 head. She's running round-top carbs, a Nismo 6-branch header and as far I know a stock cam and head.
Dotted around I have a set of triple Mikuni's, a couple of Mangoletsi manifolds for triples, one of Sean's lovely stainless 6-branch headers, an adjustable cam pulley and a P90A head that I bought a couple of years ago from a very well-known member of the Z community who told me it was "Samuri Spec" (which I'm guessing means bigger valves or some porting or some magical blend of the two but no specific info was given at the time).
I also have a spare engine but this confused me because it seems to have a Y70 block with an E88 or E80 head (difficult to read). I've heard of the heads but what block is this? I've found a Y70 head on Google but not a Y70 block. Hmmm....
I've thought about engine swaps but the above keep the same gearboxes etc.
Any thoughts on which bits to juggle?
Please excuse my asking the question if it's on here elsewhere... got a few memory issues and don't remember stuff!
Tony
First off, Merry Christmas everyone, and I hope you all have a great New Year.
I'm wondering how to get some more grunt from my Z's.
Here's what I've got available to juggle...
My 260Z has an L28 with an F54 block and P90 head. She's running 2" SU's and a (GDS?) 6-branch header but as far as I know a stock cam. The head did have a little skim a few years ago.
My 240Z has an L28 with an N42 block and N42 head. She's running round-top carbs, a Nismo 6-branch header and as far I know a stock cam and head.
Dotted around I have a set of triple Mikuni's, a couple of Mangoletsi manifolds for triples, one of Sean's lovely stainless 6-branch headers, an adjustable cam pulley and a P90A head that I bought a couple of years ago from a very well-known member of the Z community who told me it was "Samuri Spec" (which I'm guessing means bigger valves or some porting or some magical blend of the two but no specific info was given at the time).
I also have a spare engine but this confused me because it seems to have a Y70 block with an E88 or E80 head (difficult to read). I've heard of the heads but what block is this? I've found a Y70 head on Google but not a Y70 block. Hmmm....
I've thought about engine swaps but the above keep the same gearboxes etc.
Any thoughts on which bits to juggle?
Please excuse my asking the question if it's on here elsewhere... got a few memory issues and don't remember stuff!
Tony