Are the heads on 3.0 magnas same as the 3.5 magnas?

Cheers guys

Little different, but the 3.8l heads are a heap better ;) high flowing 3.5litre head turn out only a tiny bit better "WORSE" then a standard 3.8 ;) hope your car is going well ;)



What I got told by the guy porting my heads

Whats different? and will a 3.0 head fit without mods on a 3.5?

Cheers mate its going alright ha ha! yours is going well :)

Heads are the same, cams are different afaik.

Okay so next question is will #15 cams fit in a 3.0 head without mods then onto my 3.5? lol

... Yes, but why?

Can get brand new 3.0 heads but im just wondering if its worth it with the 380 cams, if its different to 3.5 i dont see much point

If your thinking of buying those heads off ebay then I dont really see the point, just get cams and spend some money on your heads getting them cleaned up.

lol just seemed cheaper having brand new lifters etc all in ready to go, im not fussed just curious

Little different, but the 3.8 heads are a heap better ;) high flowing 3.5litre head turn out only a tiny bit better then a 3.8 ;) hope your car is going well ;)

....

http://i267.photobucket.com/albums/ii314/antilagGTR/Flow.jpg

Are they complete heads or bare?

Complete

If it were me I'd try and source the parts and reco the heads myself, Im sure you could do it for under the asking price of those heads on ebay.

I can get the pair cheaper as i know him, hes holding them for me. If the 3.0 head is going to flow less i see no point lol

AFAIK they are the same only the cams are different, but if Im wrong someone like Mal or jasonsvrx will know for sure.

Well i have already bought #15 cams if that makes a difference? Have to ask mal or anyone else here that knows lol

From memory a set of ralliart valve springs from mitsu are around $260 or so adjustable cam gears are $200-$250 and a little de-shrouding with a dremil and you'll be happy as larry. lol

Alright next question, will 6g75 heads fit on 3.5 block without mods? if not what mods are needed? Exploring options while we are on the topic

Scrap that found plenty of info. Seems like a waste from what i have found. Back on topic of difference between 3.0 and 3.5 heads ha ha

4 valve 3L SOHC heads are the same as the 4 valve 3.5L SOHC heads. Ive worked on/ported plenty over the years

so if i can get a brand new pair for $500 would have to be worth it surely?

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http://i267.photobucket.com/albums/ii314/antilagGTR/Flow.jpg
Sorry I meant to say that 380heads are better then 3.5 ported heads high flowed and ported... I just had sex after I wrote, give me some credit ;)

Alright next question, will 6g75 heads fit on 3.5 block without mods? if not what mods are needed? Exploring options while we are on the topic
I didn't ask, seems the exhaust port would probably be different, and they had started my 3.5 heads

so if i can get a brand new pair for $500 would have to be worth it surely?
Brand new, yes.... Second hand... No, ;) seems you can buy a whole 3.5 for $650 these days,

6G75 heads are a no-go. It will decompress the engine into the 7's You would need 12:1 pistons to bring it back into spec.

Sorry I meant to say that 380heads are better then 3.5 ported heads high flowed and ported... I just had sex after I wrote, give me some credit ;)

lol fair enough,so how olds this one? ;)

Mate I got a whole crate motor for $1300 so if you want to pay him $500 for just the heads thats up to you. You will still need to replace the valve springs and cam gears when you fit your cams.