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If those are Crower sportsman, we've seen 2.3 survive quite well at significantly more than 100hp a hole.
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I'm still learning -
Yep, Crower Sportsman rods. You might drop Tom a note and see how much he thinks they'll take. They're identical to SBC Sportsman except for the big end width so any info pertaining to SBC applications should be valid. Crower probably has info - I'd trust them as it's in their advantage to downplay the Sportsman and sell you the fancier stuff so I'm thinking they'd probably understate the capabilities. But the Sportsman are off the shelf.
DanComment
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Nice stuff, Dan. I am collecting parts for a 496 BBC build myself and have considered the Sportsman rods. I have no experience with Ross Pistons, Crower rods, or gapless rings. I will probably stay away from gapless rings- mainly due to cost. An extra $100 for a little less leak down and MAYBE 2% power? Nah- I will just buy a cam with a little more lift or duration to make up the power loss- it will cost the same as any other with the same lifter type...
Keep posting your progress on your engine.
Silverbuick- aren't all stock Pontiac rods cast iron? Snap, Crackle, Pop... if so, I would spend the few $ and get some aftermarket steel rods- ANY steel rod. I knew a guy who had some stock Pontiac rods let go in a 455 while it was idling with good oil pressure! That is cast iron for ya.Why think when you can be doing something fruitful?Comment
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Orange65 - what length BBC rods are you looking for? I have a set of scat 6.7000 I was going to use in an FE stroker with an Eagle crank - but have changed directions so I'm selling....There's always something new to learn.Comment
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455 S/D's are forged, 421 S/D'SOriginally posted by Orange65 View Post
BUT just about EVERYTHING ELSE cast, the ohc 6 is based on the chevy 250 so he might get luckyComment
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I'd hate to pick up half a rod in a puddle of oil. I'd waffle house on over to a new set, but that's just me. The distance between pins on rods should be gapless, I don't care who the engine builder is.Originally posted by TheSilverBuick View Post
Flying south, with a flock of bird dogs.Comment
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Speaking of gapless rods - Crower offers those in 5.7 and 6.0 lengths. I went with the 5.7s only because they are compatible with the pistons and make the deck height come out right. I know the old "more rod length is better" thing and I'm sure that's right but when you build oddball engines having bits that fit together trumps all.
DanComment
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Oh Nice Dan, bring up the Long rod bit. Just get 'em settled down, and you stir it up again. Nice going G'pa. I think you have experience doing this. Do you wind the grand kids up on candy and send them home too? lol.Flying south, with a flock of bird dogs.Comment
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I'm torn on this stock rod bit - I've never seen one squashed from pressure but I've seen a few pulled apart from RPM... I think the reason I would go ahead and put new ones in is because it's not that much more money than having good rod bolts put in and the old ones reconditioned for most of my really common junk, and a lot of times, I don't know how many cycles the old ones have been through.Flying south, with a flock of bird dogs.Comment
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6.385"- plenty of off the shelf pistons for that rod length. But thanks for the offer!Originally posted by milner351 View Post
Stitch 496: Oh- I forgot the super rare SD's- you can also find them in the non windowed 403 blocks made by Olds...
Last edited by Orange65; October 28, 2011, 09:55 AM.Why think when you can be doing something fruitful?Comment
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I have a Pontiac 400 rod and piston on the shelf in my living room, and that is definately a cast rod, the OHC six rods are forged and look considerably different than the 400 rod. The OHC one looks closer to the Buick 455 rods.Originally posted by Orange65 View Post
I know Beag, I have some soul and bank account searching to do. So what's the next step up from the sports man rods? Though 100HP per rod is pretty good!!Escaped on a technicality.Comment
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