bigscaht Posted January 6, 2016 Share Posted January 6, 2016 so im slowly starting my 454 build......bottom end is done .30 over. head will be getting some work unless i go aftermarket heads..but my question is should I go with a roller cam or flat tappet cam. i was thinkin roller because of the easy break in on them. PROS AND CONS??? Quote Link to comment Share on other sites More sharing options...
Sam (Bones) Posted January 6, 2016 Share Posted January 6, 2016 roller, roller, roller, roller, roller, roller, roller, roller, roller, roller, roller, roller, roller, roller, roller, roller!!!!! with today's oils, and metals aren't what they used to be, you will be much farther ahead by spending the extra for a hydraulic roller!!!!! if you give me all the details of your build, I am very good with big block cam selection I have a set of 781's at the machine shop new getting bigger valves installed, and just ordered my new HYDRAULIC ROLLER cam Quote Link to comment Share on other sites More sharing options...
Vinniepooh Posted January 6, 2016 Share Posted January 6, 2016 Sam , you going to share your cam specs? Quote Link to comment Share on other sites More sharing options...
Leghome Posted January 6, 2016 Share Posted January 6, 2016 I just had my 350 bored 20 over and hydraulic roller cam and roller tip rockers. Erson cam and Comp roller lifters and rockers Quote Link to comment Share on other sites More sharing options...
Sam (Bones) Posted January 6, 2016 Share Posted January 6, 2016 Sam , you going to share your cam specs? if you must know 231/239 @.050 duration, .600/.600 lift on a 106 ICL/110 LSA, Lunati VooDoo hydraulic roller 20110712 with using iron heads I am on the edge of having to use more than pump 93 octane, I do not want to have to do that I have not set my compression yet, I would like to go to 10:1 but am afraid of needing better fuel Quote Link to comment Share on other sites More sharing options...
bigscaht Posted January 6, 2016 Author Share Posted January 6, 2016 Build details...we so far my block is .30 over...I have a set of peanut port heads that I'm thinkin about useing and an eddy rpm intake.....342 gears out back and not opposed to getting a stall higher than stock...I like the roller cams cuz they sounds like less maintenance Quote Link to comment Share on other sites More sharing options...
Sam (Bones) Posted January 6, 2016 Share Posted January 6, 2016 peanut port heads are only good to approx 4500 rpm you should really try to get a set of big ovals, depending on which pistons you choose would have implications on which heads to look for the heads play a big part of where your compression ends up, I would have the block deck surface done to bring the deck height to zero to control the quench distance to help prevent dentenation Quote Link to comment Share on other sites More sharing options...
bigscaht Posted January 6, 2016 Author Share Posted January 6, 2016 Yeah a friend told me about the 4500 rpm limit also. Which heads would be good with the flat top stock pistons. I was thinking bout upping the e compression by switching to some domed pistons with valve reliefs and run the heads I have but I think it would be better to switch to some better heads. Quote Link to comment Share on other sites More sharing options...
Sam (Bones) Posted January 6, 2016 Share Posted January 6, 2016 with iron heads you need to limit your compression to around 9.5, I am fighting with that right now, I want more compression but don't want to use race fuel there are a bunch of small chamber oval ports that will help flat top pistons, if you use domes 781 & 049's are the best here are some of the smaller chambered heads 3856202 97cc chamber 3856260 3872702 98cc 3904390 98cc 3909802 101cc 3917215 101cc 1 Quote Link to comment Share on other sites More sharing options...
bigscaht Posted January 6, 2016 Author Share Posted January 6, 2016 will i be close to having to use better than 93 octane with any of those heads??? the casting number on the heads i have are 14081045..are these any good or jus boat anchors??? Quote Link to comment Share on other sites More sharing options...
LostnFound Posted January 7, 2016 Share Posted January 7, 2016 peanut port heads are only good to approx 4500 rpm you should really try to get a set of big ovals, depending on which pistons you choose would have implications on which heads to look for the heads play a big part of where your compression ends up, I would have the block deck surface done to bring the deck height to zero to control the quench distance to help prevent dentenation Ummm...what language is this? LOL Quote Link to comment Share on other sites More sharing options...
Sam (Bones) Posted January 7, 2016 Share Posted January 7, 2016 will i be close to having to use better than 93 octane with any of those heads??? the casting number on the heads i have are 14081045..are these any good or jus boat anchors??? you have to looking at the pistons, heads, deck height, head gaskets and cam as a combination first get the heads, then choose pistons to work with the combustion chambers, cam plays in here too esp if you are on the edge of needing race fuel boat anchors on those heads Quote Link to comment Share on other sites More sharing options...
bigscaht Posted January 8, 2016 Author Share Posted January 8, 2016 so that lead me to to looking at the eddy top end package with cam..heads and intake...hummmmm..might start a go fund me account..hahahah Quote Link to comment Share on other sites More sharing options...
monte70car Posted January 8, 2016 Share Posted January 8, 2016 Saw JEGS had eddy e-street on sale for a big block just saying Quote Link to comment Share on other sites More sharing options...
72MC Posted January 9, 2016 Share Posted January 9, 2016 I'll add my two cents for what it's worth. When it comes to engine building and you're looking for any type of substantial power over stock, you will eventually regret not doing it "right" the first time. "Right" to me means all forged lower end(ie. crankshaft, rods, pistons, etc.). Billet roller cam with full roller rocker arms and roller lifters(ie Full Roller assembly). No roller tip rockers. You might as well buy stamped rockers. There was a study done on roller tips and it was discovered that they really don't do what they are supposed to do(ie. they act like stamped rockers thus are not worth the extra money). Also, use one piece lift rods, no welded tip lift rods. If you add good quality aluminum heads and a blow thru proof HP Holley carb and you are already ready for power adders when you're ready to do that (ie Procharger). I realize this isn't cheap but you might as well save and wait to do it right rather than get in a big hurry and settle for something that you will eventually regret. Now,...bear in mind my preface for my two cents,... you're looking for any type of substantial power over stock. Also keep in mind, just because you use the best pieces, that doesn't mean it won't break. Anything mechanically can break at anytime . Again, just my two cents, no hate mail . - Dave Quote Link to comment Share on other sites More sharing options...
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