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Car Forum / Ford / Ford Mustang / April 2005351w convertion in 87 convert questions
Hi I am thinking on doing a four cylinder to a 351w in a 87 mustang convert. I know this topic has been around. I would like the expertise of you people in here on what to advise me for changes and suspension/ Thanks Dave. > Hi I am thinking on doing a four cylinder to a 351w in a 87 mustang convert. > I know this topic has been around. I would like the expertise of you people > in here on what to advise me for changes and suspension/ Thanks Dave. It would cost you a lot less money & save a lot of valuable time to find a 5.0 donor car for the project, as it will have all the parts you need. The 351W/5.8 is only about 20-25 lbs. more than the 5.0. Rob > The 351W/5.8 is only about 20-25 lbs. more than the 5.0. > > Rob 351W/5.8 bare block weight- 168 lbs. 302/5.0 bare block weight- 129 lbs. Difference- 39 lbs. The only blocks that are really close in weight are the FRPP racing blocks where there is only 7 lbs difference between the two. FRPP Sportsman 351W, 2-bolt main, racing block- 183lbs. FRPP R302, 4-bolt main, racing block- 176 lbs. But you could build a MONSTER stroker with one of these blocks and a huge overbore.  SignatureScott W. '66 HCS Mustang 289 '68 Ranchero 500 302 '69 Mustang Sportsroof 351W ThunderSnake #57 http://home.comcast.net/~vanguard92/ "trainfan1" <lmsearing@usdatanet.net> wrote > The 351W/5.8 is only about 20-25 lbs. more than the 5.0. > > Rob 351W/5.8 bare block weight- 168 lbs. 302/5.0 bare block weight- 129 lbs. Difference- 39 lbs. The only blocks that are really close in weight are the FRPP racing blocks where there is only 7 lbs difference between the two. FRPP Sportsman 351W, 2-bolt main, racing block- 183lbs. FRPP R302, 4-bolt main, racing block- 176 lbs. But you could build a MONSTER stroker with one of these blocks and a huge overbore. -- Scott W. . I think he was referring to the weight of a complete engine. Correct me if I'm wrong. SignatureMark -- "I was thinking of the immortal words of Socrates who once said, "I drank what?". " Val Kilmer in Real Genius. >I think he was referring to the weight of a complete engine. Correct me if >I'm wrong. The 351W would have an even wider weight gap on the 302. The intake manifold is bigger (wider), hence heavier. Everything else would weigh the same since the parts are all interchangeable (except distributor). However, just to pick nits, a stock 351W uses longer rods, taller pistons, and a taller distributor (which add even more weight). Moving the difference up closer to 50 lbs, not the suggested 25 lbs. Now if every pound counts, that's alot of weight to try and cut somewhere else. SignatureScott W. '66 HCS Mustang 289 '68 Ranchero 500 302 '69 Mustang Sportsroof 351W ThunderSnake #57 http://home.comcast.net/~vanguard92/ I was thinking the 351W would be carburated as to the 5.0's fuel injected smogged weight. SignatureMark -- "I was thinking of the immortal words of Socrates who once said, "I drank what?". " Val Kilmer in Real Genius. >>I think he was referring to the weight of a complete engine. Correct me if >>I'm wrong. [quoted text clipped - 6 lines] > difference up closer to 50 lbs, not the suggested 25 lbs. Now if every > pound counts, that's alot of weight to try and cut somewhere else. >I was thinking the 351W would be carburated as to the 5.0's fuel injected >smogged weight. apples/oranges SignatureScott W. '66 HCS Mustang 289 '68 Ranchero 500 302 '69 Mustang Sportsroof 351W ThunderSnake #57 http://home.comcast.net/~vanguard92/ Hmmm, aapples, and oorages. SignatureMark -- "I was thinking of the immortal words of Socrates who once said, "I drank what?". " Val Kilmer in Real Genius. >>I was thinking the 351W would be carburated as to the 5.0's fuel injected >>smogged weight. > > apples/oranges
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