862 s Vs 243 s.....

[ecld_07]

The reason 862s work well is because they can achieve a higher CR. The 243s flow much better but require a heavy mill to get the compression back to stock.

Put well

[suburbazine]

I've got ported/polished/milled 862 heads on a 5.3 and I have to say that they did wonders vs. being in stock form. I couldn't say how much HP they added because I did a cam swap at the same time. They're currently going back on that same block just bored to a 5.7 this time around.

[badboy956]

I've got ported/polished/milled 862 heads on a 5.3 and I have to say that they did wonders vs. being in stock form. I couldn't say how much HP they added because I did a cam swap at the same time. They're currently going back on that same block just bored to a 5.7 this time around.

How much did it run you to get you lr 862s worked on?

[suburbazine]

$600ish for the port & polish on top of $250 for the millwork and spring install. The shop I used doesn't do port & polish very often, I only got it done because I was a regular customer.

[badboy956]

$600ish for the port & polish on top of $250 for the millwork and spring install. The shop I used doesn't do port & polish very often, I only got it done because I was a regular customer.

Badass bro

[ss454327]

AI is supposed to have a killer CNC program for the 862 heads.

[badboy956]

AI is supposed to have a killer CNC program for the 862 heads.

Thanks bro i'll look into it