i have read and understand the issue of the 289's low compression. i have also determined that it'd be a fun idea to make a peppy little 289 instead of going with a 302, 351, or stroker. so here's what i've learned so far ...
stock heads were 54cc, and provided about 8.75:1 compression. that is relatively low, especially for such heads.
for a significant increase of power (300+hp), aftermarket heads may be required. on this note, 58cc is the smallest combustion chamber i can find on an aftermarket aluminium head. this is going to provide even less compression. 289 heads can be ported a decent amount, but would it be worth it?
I need to know how (including milling options) i can get the compression of my 289 up to around 9:1, if not more, using flat top pistons and aftermarket heads (if deemed necessary). as mentioned before, milling is an option but i'd like other suggestions if there are any. i have a thought on the rest of what the motor will be, so if more info is required just say so. thanks fellas
stock heads were 54cc, and provided about 8.75:1 compression. that is relatively low, especially for such heads.
for a significant increase of power (300+hp), aftermarket heads may be required. on this note, 58cc is the smallest combustion chamber i can find on an aftermarket aluminium head. this is going to provide even less compression. 289 heads can be ported a decent amount, but would it be worth it?
I need to know how (including milling options) i can get the compression of my 289 up to around 9:1, if not more, using flat top pistons and aftermarket heads (if deemed necessary). as mentioned before, milling is an option but i'd like other suggestions if there are any. i have a thought on the rest of what the motor will be, so if more info is required just say so. thanks fellas