Yes.40L 52 Posted September 12, 2013 Hey all, I gave been advised that this is a 351 Cleveland. Can someone confirm? It's in a 76 f100 that I just put a deposit in Thanks in advance I will be able to get some better photos is a couple weeks when I pick it up Share this post Link to post Share on other sites
Tyler06 266 Posted September 12, 2013 Its a cleveland but cant say if its a 302 or 351 by looking at it. You have to measure the stroke. Share this post Link to post Share on other sites
Thom 6,660 Posted September 12, 2013 Easiest way to check while the engine is still assembled it to pull a spark plug and measure the stroke using a piece of wire mark top dead centre and bottom dead centre Andrade the difference between the marks 4 inches is a 351 and 3.5 is a 302 Share this post Link to post Share on other sites
Thom 6,660 Posted September 12, 2013 At least it runs, or is in that picture anywayq Share this post Link to post Share on other sites
steve mcqueen 1,796 Posted September 12, 2013 At least it runs, or is in that picture anywayq Looks like a goer eh Thom from the pic. To bad if it aint a 351, you put a deposit on it. 351's are over rated anyway. Rip the sump off it and check for the big 351 stamped on the crank. Good excuse to change the gasket and rear main seal anyway. Share this post Link to post Share on other sites
Thom 6,660 Posted September 12, 2013 Not all 351's have 351 cast into the crank, pre xa (before 302's were produced) a clevo crank will have either 4m, 4ma or 4mab stamped into the leading counterweight, all 302 Cleveland cranks have 302 cast into the crank, it's only the Aussie cranks that have the size on them the us sourced cranks don't because there was only one size clevo in production at that time 1 XTREME KARTS XF reacted to this Share this post Link to post Share on other sites
Tyler06 266 Posted September 12, 2013 Isnt it 3" for 302 and 3.5" for 351? 2 78xcgxl and Ants reacted to this Share this post Link to post Share on other sites
gerg 10,871 Posted September 13, 2013 Isnt it 3" for 302 and 3.5" for 351? Yep , 4" is for a 400, which is a taller block anyway. If it's an undisturbed, original head engine, you can tell externally if it's open (351) or closed (302) chamber by the casting lumps at the end of the head as it meets the block. On pulling the sump, the 302 crank will have "302" cast into it, whereas the 351 will have "4M", "4MA" or "4MA-B". (edit) you beat me to it Thom. Share this post Link to post Share on other sites
bear351c 10,277 Posted September 13, 2013 Agreed. 4" bore x 3.5'' stroke is a 351. (unmolested) 3" stroke is a 302ci. Clevo heads are rectangular shaped on the ends, with 4 threaded bolt holes, Windsors are sort of triangular. ? Most Windsor engines have the thermostat housing as part of the intake manifold. Clevo's have it on the front of the block. This advice is general, for further details call 1800 DILLIGAF. Call costs 0.50cents/min, higher from mobiles, if you're desperate. Share this post Link to post Share on other sites
Thom 6,660 Posted September 13, 2013 Isnt it 3" for 302 and 3.5" for 351? My bad don't know what I was thinking of Share this post Link to post Share on other sites
bear351c 10,277 Posted September 13, 2013 No drama's Thom...it's been a 3 coffee morning, in my world too.! Share this post Link to post Share on other sites
P100_Ute 460 Posted September 13, 2013 Its a cleveland but cant say if its a 302 or 351 by looking at it. You have to measure the stroke. Easiest way to check while the engine is still assembled it to pull a spark plug and measure the stroke using a piece of wire mark top dead centre and bottom dead centre Isnt it 3" for 302 and 3.5" for 351? Yup this will tell you. i did it to my engine to check. Share this post Link to post Share on other sites
steve mcqueen 1,796 Posted September 13, 2013 Not all 351's have 351 cast into the crank, pre xa (before 302's were produced) a clevo crank will have either 4m, 4ma or 4mab stamped into the leading counterweight, all 302 Cleveland cranks have 302 cast into the crank, it's only the Aussie cranks that have the size on them the us sourced cranks don't because there was only one size clevo in production at that time Well there you go, I forgot that somebody might have brought it in from the USA, thanks thom, id hate to give somebody a bum steer. Share this post Link to post Share on other sites
Yes.40L 52 Posted September 13, 2013 Thanks guys! I will check it out. On more question. Are headers for 302 & 351s the same? Share this post Link to post Share on other sites
Tyler06 266 Posted September 13, 2013 Yes as long as they are not to suit 351 4v. Share this post Link to post Share on other sites
bear351c 10,277 Posted September 14, 2013 Different between XW-XY and XD-XE 351's. (Shouldn't matter on an Effie, plenty of room. Not 100% though...) Share this post Link to post Share on other sites
Valvebouncer 2,389 Posted September 15, 2013 Other way to tell if its a Windsor or Cleveland is the location of the thermostat housing. Windsor have it bolted to the intake manifold and on Cleveland it bolts straight onto the engine block which is awesome when you have old corroded housing bolts that snap like twigs!!! Great memories Share this post Link to post Share on other sites
Valvebouncer 2,389 Posted September 15, 2013 Just noticed the Bosch electronic dist. Nice little bonus right there!! Share this post Link to post Share on other sites