20v head swap, need a parts list Options

[trd94]

ok after doing some research i have decided to swap a 20v on my 7a , so right now i am puttting together a parts list of what is needed and i hope you guys can help me out, 1. a 20v head i want a full head with the intake and all the sensors ,right. 2. i will use a set of 4age pistons for the 20v head ,also they will be a lower compression. 3. the rods i want to know if a set of 4age rods will work or do i need a costom set? 4. what timming belt do i use ,i heard a 944 belt works but i dont know. 5. how do i wire it up and can i use a piggyback unit like emanage or do i have to go stand alone, i will be running a turbo on this setup but i am not out to make huge hp , so any help would be great ,thanks again guys

This post has been edited by trd94: Feb 15, 2007 - 10:55 AM

[Kwanza26]

ok after doing some research i have decided to swap a 20v on my 7a , so right now i am puttting together a parts list of what is needed and i hope you guys can help me out, 1. a 20v head i want a full head with the intake and all the sensors ,right. 2. i will use a set of 4age pistons for the 20v head ,also they will be a lower compression. 3. the rods i want to know if a set of 4age rods will work or do i need a costom set? 4. what timming belt do i use ,i heard a 944 belt works but i dont know. 5. how do i wire it up and can i use a piggyback unit like emanage or do i have to go stand alone, i will be running a turbo on this setup but i am not out to make huge hp , so any help would be great ,thanks again guys

20V pistons in a 7A block will NOT lower compression. It'll raise compression to at least equal that for a stock 20V (which is 10:5 or 11 depending on version) porssibly more beacause of the increased stroke. 4AGE rods WILL NOT work... they are too short and the rod journals are too small. porsche 944 timing belt WILL NOT work because the 20V head is different from a 16V head and the 20V and 16V use different timing belts.

[trd94]

ok after doing some research i have decided to swap a 20v on my 7a , so right now i am puttting together a parts list of what is needed and i hope you guys can help me out, 1. a 20v head i want a full head with the intake and all the sensors ,right. 2. i will use a set of 4age pistons for the 20v head ,also they will be a lower compression. 3. the rods i want to know if a set of 4age rods will work or do i need a costom set? 4. what timming belt do i use ,i heard a 944 belt works but i dont know. 5. how do i wire it up and can i use a piggyback unit like emanage or do i have to go stand alone, i will be running a turbo on this setup but i am not out to make huge hp , so any help would be great ,thanks again guys

20V pistons in a 7A block will NOT lower compression. It'll raise compression to at least equal that for a stock 20V (which is 10:5 or 11 depending on version) porssibly more beacause of the increased stroke. 4AGE rods WILL NOT work... they are too short and the rod journals are too small. porsche 944 timing belt WILL NOT work because the 20V head is different from a 16V head and the 20V and 16V use different timing belts.

then please help me out , the pistons i was going to use was a set of forged units that when installed into a 20v would lower the compression down to 9:1 , the rods where just a idea but i think the rods nik use would be better , so what timing belt should i use any ideas , this is why i am trying to find out any info ,and set up a parts list so i dont get any thing i dont need