1badeagle Posted August 22, 2009 Share Posted August 22, 2009 I just bought a engine from a friends dad out of a truck. Thats all i was told. When I picked it up, I noticed it had center bolt valve covers on it. I thought it was probably a vortec motor. I came home and ran the head and block numbers to find some things out. The head number is 14101083 which shows Gen 1 crate 285 or 300 hp motor 64 cc chamber 72' center manfold bolt angle. The block showed the number 14088531 which i cannot find on the net at all. I know that its a 250 cubic inch motor with a 4 barrel carb intake on it. Does anyone have any ideas about this? Now for another question. I figure it has dished pistons in it. If i bought the summit rebuild kit with the flat top pistons would it raise my compression any? Also what is a good cam for a mild build? Are the summit cams any good? Quote Link to comment Share on other sites More sharing options...
deja Posted August 22, 2009 Share Posted August 22, 2009 Look at the engine number again. You sure its not 14088551? If so its a 305...86-87...2 bolt main...one-piece rear main seal. http://www.mortec.com/castnum.htm Quote Link to comment Share on other sites More sharing options...
1badeagle Posted August 22, 2009 Author Share Posted August 22, 2009 Ok ill double check, but what about those heads? Quote Link to comment Share on other sites More sharing options...
deja Posted August 22, 2009 Share Posted August 22, 2009 Mortec says 14101083...87-up...350..........Gen.I, also used on crate motors, 285 or 300 hp, 64cc chambers, 72' center manifold bolt angles. So Mortec says the block is a 305 but the heads were most likely from a 350. 14101081 heads were used on the 305, no spec difference as far as Mortec says. Quote Link to comment Share on other sites More sharing options...
1badeagle Posted August 22, 2009 Author Share Posted August 22, 2009 So would these heads hurt the performance on a 305 motor? Any idea what kinda power it would make with those heads? Im just looking at a guess to see what im starting with. Basically I want to swap this into my rhd fairlady z that i have with the wc t5. I have a jtr manual and have read it all. Can any power be made from this motor cheaply? Quote Link to comment Share on other sites More sharing options...
deja Posted August 22, 2009 Share Posted August 22, 2009 You're asking the wrong guy. I am certainl;y no SCB expert. But from what I do know the 305 is NOT the prefeered engine chouce. Cheap HP, there is no such thing, . Do some reseach, anything can be made to go fast if you have enough time and money. http://www.cadvision.com/blanchas/54pontiac/305.html So would these heads hurt the performance on a 305 motor? Any idea what kinda power it would make with those heads? Im just looking at a guess to see what im starting with. Basically I want to swap this into my rhd fairlady z that i have with the wc t5. I have a jtr manual and have read it all. Can any power be made from this motor cheaply? Quote Link to comment Share on other sites More sharing options...
1badeagle Posted August 22, 2009 Author Share Posted August 22, 2009 Ok thanks a ton man:) Quote Link to comment Share on other sites More sharing options...
deja Posted August 22, 2009 Share Posted August 22, 2009 OMG!!!You're from Zanesville, Ohio?? I lived in Cambridge for 16 years before moving to GA in 1989. Lots of good memories of that area. Good luck with the engine. Get it running, do the swap. You can always upgrade to a better engine later. SBC is SBC they will all bolt in to replace the 305. I just swapped out my old (130k miles) LT1 for a brand new one, still breaking it in. Quote Link to comment Share on other sites More sharing options...
1badeagle Posted August 23, 2009 Author Share Posted August 23, 2009 sweet, im reading an article on build a 325hp 305. Seems pretty easy no boring or stroking need. That should be more than enough hp in a 240z:) Quote Link to comment Share on other sites More sharing options...
1badeagle Posted August 23, 2009 Author Share Posted August 23, 2009 OMG!!!You're from Zanesville, Ohio?? I lived in Cambridge for 16 years before moving to GA in 1989. Lots of good memories of that area. Good luck with the engine. Get it running, do the swap. You can always upgrade to a better engine later. SBC is SBC they will all bolt in to replace the 305. I just swapped out my old (130k miles) LT1 for a brand new one, still breaking it in. You moved in 1989......I was born in 1989. Thats funny. My sister lives between cambridge and new concord Quote Link to comment Share on other sites More sharing options...
deja Posted August 23, 2009 Share Posted August 23, 2009 LOL, thanks, like I already don't feel old!!! You moved in 1989......I was born in 1989. Thats funny. My sister lives between cambridge and new concord Quote Link to comment Share on other sites More sharing options...
1badeagle Posted August 23, 2009 Author Share Posted August 23, 2009 LOL, thanks, like I already don't feel old!!! Its all in good fun. Quote Link to comment Share on other sites More sharing options...
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