305 cam selection etc.
Hi
I am rebuilding my 305 marine engine. I have 416 heads (that I will pocket port) and valve relief pistons. The CR is approx 9.2. I have stainless marine exhaust and a weiand 8004 intake. I wonder which cam I should choose for this engine. I have thought about comp cams xm256h... I want as much power as I can get from the old 305 (I live in Norway, so 350's are rather expensive, so for the moment I will stick with the 305). This is an inboard/outboard installation with a VP outdrive. This outdrive has cone shift, so I will not mess up my lower unit if I have to have a bit higher idle speed. Another thing: is the 8004 intake any good in my app, or should I get another one? Thanks, Stian |
Anyone that can help me out there? Would appreciate it :)
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i hate to say it but you are not gonna ever be happy with a 305 in my opinion you will never be happy with it. i have tried 305s in cars and theyjust dont have the power. a 350 would be a good solution but a 350 with a 383 kit would not cost too much and build a ton of power. like i said its my opinion
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Originally Posted by regalman4925
(Post 2870865)
i hate to say it but you are not gonna ever be happy with a 305 in my opinion you will never be happy with it. i have tried 305s in cars and theyjust dont have the power. a 350 would be a good solution but a 350 with a 383 kit would not cost too much and build a ton of power. like i said its my opinion
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thin he has stainless exhust right? and that intake will help also. i think a budget 383 would not cost too much
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Yes, if I lived in the states a 383 would be what I would have gone for. Here it is far between 350 blocks, and the import taxes are very high (I think it is like $20 per horse, plus 25% sales tax....) plus the fright from the states cost almost as much as the engine, so I am going to run the 305, at least this season. Just so you can get a picture, a new standard mercruiser cost about $40-50K here.
I hope that I will be able to get hold of a decent used 350 block and stroke it before next season. Anyways I am stuck with the 305 for now, and I want to do the best out of it. |
Gotta love socialism. Government "needs" to keep you in line for your own good.
Depending on the year, you could probably upgrade to a roller for fairly cheap. I have a XE264HR sitting around that I would like to get rid of. Same duration at 050 as the one you mentioned. It is ground on a 110, but at that duration reversion shouldn't be an issue. |
Originally Posted by stian
(Post 2871443)
Here it is far between 350 blocks, and the import taxes are very high (I think it is like $20 per horse, plus 25% sales tax....) plus the fright from the states cost almost as much as the engine, so I am going to run the 305, at least this season. Just so you can get a picture, a new standard mercruiser cost about $40-50K here.
Obama's vision for America |
It is a 2 pc. block, so I guess I need a lot of stuff to upgrade it to a roller. Do you just have the cam, or the whole retrofit package?
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I just have the cam, but it is for an 87 and up OEM roller block. You do not have the provision for the cam retainer and I don't know what would be involved in making it work in an older block.
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