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Ok I got the heads dialed in all within
.020 of 1.900 installed height on the springs , no coil bind and seal to retainer is .200 so I bolted the heads up and installed the roller lifters and spider hold down bracket with dog bones , rockers should be here Monday to check for push rod length and then order push rods , I also decided to buy a new rudder assy because mine is worn past and is leaking , so more to come on that and I listed in another thread if you would like to follow ,
Here are some pics of what is going to look like and progress ! https://uploads.tapatalk-cdn.com/201...ba5c36a2b6.jpghttps://uploads.tapatalk-cdn.com/201...8f4643aae4.jpghttps://uploads.tapatalk-cdn.com/201...1bcf2ceb9d.jpghttps://uploads.tapatalk-cdn.com/201...07e852e61d.jpg
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Ok , setting up heads is a real art form , I have been setting up rocker arm geometry and found the valves that came with these heads are to long , that causing my sweep
Pattern on valve tip to be wrong . .050 thou in middle of tip is what I'm shooting for . So I'm waiting on valves to. Come in then I can finally assemble .
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I'm glad you're finding this out in advance. Once this get puts together you'll need to post a video so we can hear it run.
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Quote:
Originally Posted by
TitanTn
I'm glad you're finding this out in advance. Once this get puts together you'll need to post a video so we can hear it run.
Believe me brother I've been itching to hear it . But I gotta follow the order by the book so I know it's right . And the engine alignment shouldn't be as bad as I thought . So maybe next weekend will see
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Progress ! I finally figured out the push rod length and getting the wear pattern,
Anybody that is thinking of getting flotek heads , think twice ! I have been at this BS for 1 month , they even sent me different valves ! My problem was the valve centerline to sweep on valve tip was way off cause the rockers I was using ! So finally they only will accept full trunion roller rockers , nothing else . Speedway motors hooked me up but they are not cheap ! $300 . Also I got the dizzy in today and the AN fuel lines , ordered my 7.500 push rods for .060 sweep and I'm gonna push to have this thing started next weekend and possibly put it in the boat ! https://uploads.tapatalk-cdn.com/201...b36b86b094.jpghttps://uploads.tapatalk-cdn.com/201...345b999c16.jpghttps://uploads.tapatalk-cdn.com/201...6c4f4cb95b.jpghttps://uploads.tapatalk-cdn.com/201...e797f859c3.jpg
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Wow. This is going to be too pretty to run! Are you going to dyne this before it goes back in?
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Quote:
Originally Posted by
TitanTn
Wow. This is going to be too pretty to run! Are you going to dyne this before it goes back in?
No , I wish , my numbers are pretty spot on , I CC'ed the heads piston dish and the .020 in the hole and ran a simple CPU test online , entered all the numbers and should be close to that . But for I had one local I might . Just don't have a lot more time left . https://uploads.tapatalk-cdn.com/201...6b4c0b75f4.jpghttps://uploads.tapatalk-cdn.com/201...2b12d31e1b.jpg
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new engine build or buy long block ?
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She's running boys !!! Started right up at 12 degrees . https://youtu.be/8Yn1NYczGPM
J
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Quote:
Originally Posted by
lively
Awesome! You haven't made any adjustments and she looks like she's purring real smooth. Congrats on a job well done. You'll have everything ready to go for the Southern Supra Reunion this summer! :rolleyes:
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Quote:
Originally Posted by
TitanTn
Awesome! You haven't made any adjustments and she looks like she's purring real smooth. Congrats on a job well done. You'll have everything ready to go for the Southern Supra Reunion this summer! :rolleyes:
Thanks man , I wish !! But I did manage to get it timed at 12 * that's what performance distributor told me to set it at . And it's runs good !
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She's running! Beautiful sound! A little early right now, but the next beer is a cheers to you! ;)
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Quote:
Originally Posted by
kvand347
She's running! Beautiful sound! A little early right now, but the next beer is a cheers to you! ;)
Thanks man ! I revved it up and it sounds great , was hoping for alittle bit more of a lobe , but I'm really happy the way it turned out , and 45 psi oil pressure all the way to 60 .. lake test next weekend
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I like the way she purred. What are you doing to break it in? You went roller cam right? If so, you don't need to worry about adding zinc, but you should still work it through all rpms and multiple oil changes.
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Quote:
Originally Posted by
kvand347
I like the way she purred. What are you doing to break it in? You went roller cam right? If so, you don't need to worry about adding zinc, but you should still work it through all rpms and multiple oil changes.
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Yes , valve train comp cams says to bring it all up to operating temp and then back down to ambient temp . The roller cam only needs oil and the I'm running 5w30 conventional oil from oriellys , it's good clean oil and I'll change it after the first 5 hours to see what's going on through a coffee filter . I'm gonna break it in under power loads , my opinion the piston rings are worn in under loaded conditions and the compression is what sends the rings outward to seal things up for a reliable engine . Since I have full roller rockers I may have to adjust lash but this is my first roller build and I've dialed everything in from springs to valves , compression ratio , porting . So she should run in pretty well .
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Sounds right to me. Those 5 hours will seem like 100! Once broken in, are you switching to synthetic?
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Wow that's a beautiful motor!
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Quote:
Originally Posted by
kvand347
Sounds right to me. Those 5 hours will seem like 100! Once broken in, are you switching to synthetic?
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Idk yet , I'm kinda on the fence , trying to decide on possibly using amsoil or royal purple . But there's still time to decide . Just need to read some reviews ect
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Quote:
Originally Posted by
Zkdk3000
Wow that's a beautiful motor!
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Thanks man ! She's got a lot in her but I'm loving every minute
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That really sets the bar, man. Nice job. Better than new in all the right ways.
Well done.
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Quote:
Originally Posted by
SquamInboards
That really sets the bar, man. Nice job. Better than new in all the right ways.
Well done.
Thanks man ! Once I started the tear down the old engine I decided that I really wanted something that was reliable but also gave that musclecar vintage feel, I spent about 5k including the shaft prop and engine . But I'm happy with it
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That's perfect. I spent $2,500 just at the machine shop rebuilding my GT-40. People spend $5k all the time just getting a worn-out engine back to factory spec! And a crate motor would have been more money with less satisfaction, for sure.
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Yeah I got the rotating assembly at a local machine shop and then I just ordered the head and the valvetrain and pretty much paid it everything else but I later on how to buy new prop shaft seal new rudder , and all the engine dress-up stuff, but all in all man I'm I really do like it and I've had fun building it
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Lively, getting a chance to catch up....it was nice to hear it running!!
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Quote:
Originally Posted by
Cooose
Lively, getting a chance to catch up....it was nice to hear it running!!
Thanks man ! I'll be installing tomorrow and I'll record another video of it in the boat ..
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https://youtu.be/fc8jHsTfS0I
She's in and running ! But I found some blue smoke coming from the tail pipes . Did a little diag with propane and in the valve cover .
I found 3 valve seals lifted , These are PFTE seals . So I'm going to change all the valve seals to viton metal body seals . The ones that comp sent me are like a hard plastic and very brittle 503-16 part number . But I'll have that done this week and I'll splash down sat at the local lake for some piston ring sealing time !! WOT - Idle ... "repeat"
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https://uploads.tapatalk-cdn.com/201...ec0926ce50.jpg. Lake test day !! I tore the entire top end off due to valve seal leakage , replaced with viton metal case seals and they are not coming off , started up and timed to 12* , will see if she wants more timing . But I'm ready to see how she feels ! Wish me luck !
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Good luck!! When you get back, any chance you can post up a pick of your dash?
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How'd it go??
Zk
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Lively - with your engine build did you replace the manifolds and risers? Mine are original to the boat from 88 so I'm leaning toward changing them out since 1) I don't know the history of the boat, 2) the engine was DOA, and 3) from what I've read I'm not coming up with any conclusive way of testing them.
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Quote:
Originally Posted by
Cooose
Lively - with your engine build did you replace the manifolds and risers? Mine are original to the boat from 88 so I'm leaning toward changing them out since 1) I don't know the history of the boat, 2) the engine was DOA, and 3) from what I've read I'm not coming up with any conclusive way of testing them.
My original ones from 6 years ago were cracked , and were leaking , no easy way to test , but if they look like hell and rusted on the outside I would look into some new ones . I paid like $600 for the set
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Quote:
Originally Posted by
Zkdk3000
How'd it go??
Zk
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Went really good ! 50 mph at WOT and maintained good oil pressure . Acme 541 prop was amazing !
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