Hi Adelk,
Reasonably common conversion, although more common in early secas.
Search the various forums 4age, twincam etc.. there's sure to be a few good 20v build threads.
Being a 4A-- engine, all engine mounts and bolting points to the gearbox bellhousing should be fine, making 20v into a 1996 seca a relatively straight forward process.
Few questions:
Has it been compression tested? This should be done before converting, otherwise it's a hit and miss affair.
Main things you will need are 20v ECU and loom or an aftermarket engine management set up. Will also help if you have any other 20v items from around the engine bay.. but not essential..
4afe fuel delivery should be fine for a 20v but you can upgrade to a larger fuel pump and/or swirlpot if you want to.
Depends on how aggressive you want to tune the 20v, which then leads to other things you'll naturally want to consider like, performance headers, fuel injectors and adjustable cam gears.
Also search the web for any pdf's or computer discs for sale that have 4afe & 20v service manual.
Good quality tools/socket set..
Patient methodical approach..
Engineers certificate
and you're done
With better breathability and higher compression ratio, it should be fun
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