Tech / General EngineIs your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
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I'm replacing seals and seats, etc because mine need to be reserviced, just curious what should i do thats cheap to get a little more out of the heads while i have them apart?
Seats are not a DIY job. And they have nothing to do with blue smoke. If you want to do seals, that's great. No need to pull the heads, but if you do, then upgrade to the non-swirl-port heads used on the LB9s with 5-speed.
Seriously, these are the worst heads GM ever made. Just about anything is better than these heads. A set of 350 vortec heads would be great, even the 305 vortec heads are far superior to LO3 heads.
What should i do though? I don't know the appropriate casting of 305 heads, and people tell me i'll lose compression or it'll be hell working with 350 vortec heads on my 305.. ive been hearing good and bad reports on them and no ones giving me a straight answer. :\ I know that'll i'll need with vortec heads a vortec aluminum intake to tbi, and since i do that i heard a cam would help alot... (lt1 w/ vortec?)
yes if you run the 906 or 062 vortec castings you will loose a bit of compression gonna guess .2-.5 but the power you will gain from just not running those other heads will more than make up for it but you are starting to get into the area of needing a new tune
What should i do though? I don't know the appropriate casting of 305 heads, and people tell me i'll lose compression or it'll be hell working with 350 vortec heads on my 305.. ive been hearing good and bad reports on them and no ones giving me a straight answer. :\ I know that'll i'll need with vortec heads a vortec aluminum intake to tbi, and since i do that i heard a cam would help alot... (lt1 w/ vortec?)
059 casting are good 305 vortec heads.
I would not invest in new heads if stayn under 5000rpm.
