T O P I C R E V I E W
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NEIGHT
Member # 8741
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posted
How can you find out the pushrod length needed? I have trickflow 170 heads with a b303 N I need to know what size pushrod I should run
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Secnd2nun64
Member # 1431
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posted
The instructions will give you a ball park but you got to measure. Remember that you will need chrome moly ones. You can order a pushrod checker or make one by cutting a pushrod in half and threading it for bolt stock.
6.75 roller-ballpark 7.3 flat tappet-ballpark
if your #'s are more than .05 off from that, you screwed up and will need to measure again.
I had those same heads on my 289 which are now on my my new engine. I still have the pushrods for the old setup if interested. They were for a flat tappet cam.
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Camara90
Member # 134
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posted
Best thing to do is measure, to many variables. Are they fresh out the box? If I remember correctly mine measured out to 6.7
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NEIGHT
Member # 8741
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posted
quote: Originally posted by Camara90: Best thing to do is measure, to many variables. Are they fresh out the box? If I remember correctly mine measured out to 6.7
Yes they are, N that's the size I thought it would be too!
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turbo50
Member # 6700
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posted
depends on what rockers you have too.......
anyway the tool is 12 dollars from summit racing
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*1 HoT Ls1*
Member # 8703
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posted
i just had to do this with my motor. dont just assume. buy the comp cams checker and measure it.
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2T0NE
Member # 4216
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posted
quote: Originally posted by turbo50: depends on what rockers you have too.......
anyway the tool is 12 dollars from summit racing
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NEIGHT
Member # 8741
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posted
quote: Originally posted by turbo50: depends on what rockers you have too.......
anyway the tool is 12 dollars from summit racing
I have 1.6 scorpion roller rockers stud mount if it matters. I would buy the checker but I don't have time this is my daily driver so I'm trying to knock this out this weekend.
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Camara90
Member # 134
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posted
quote: Originally posted by NEIGHT: quote: Originally posted by turbo50: depends on what rockers you have too.......
anyway the tool is 12 dollars from summit racing
I have 1.6 scorpion roller rockers stud mount if it matters. I would buy the checker but I don't have time this is my daily driver so I'm trying to knock this out this weekend.
I used Scorpion 1.6 with my TFS heads and it measured out to 6.7. But I still think you should measure. People dont realize how much valvetrain noise and power can be losed by having the wrong length.
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Camara90
Member # 134
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posted
http://www.holley.com/data/TechService/Technical/Valve%20Train%20Geometry.pdf
quick read on how to, pretty simple process.
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moeofit32
Member # 10393
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posted
quote: Originally posted by Camara90: quote: Originally posted by NEIGHT: quote: Originally posted by turbo50: depends on what rockers you have too.......
anyway the tool is 12 dollars from summit racing
I have 1.6 scorpion roller rockers stud mount if it matters. I would buy the checker but I don't have time this is my daily driver so I'm trying to knock this out this weekend.
I used Scorpion 1.6 with my TFS heads and it measured out to 6.7. But I still think you should measure. People dont realize how much valvetrain noise and power can be losed by having the wrong length.
+1 i told him the same thing but he is trying to rush something that takes time measure them to be safe u never no wat exactly has been done
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NEIGHT
Member # 8741
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posted
I can ONLY do it on a weekend I don't own any other car that's why I'm rushing things. I don't have the time to keep my motor apart N wait for parts to come in.
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moeofit32
Member # 10393
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posted
then i suggest u not do the hci until u have the time to check last thing u wanna do is guess assemble it and something happens this push rod thing your dealing with put my stuff on hold for a week but was well worth it
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moeofit32
Member # 10393
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posted
this is the video i watched and it guided me through it... i put the rr and pushrods in my car it was my 1st time http://www.youtube.com/watch?v=Cqx8Cs6O6Vo&feature=related [ August 01, 2012, 05:42 PM: Message edited by: moeofit32 ]
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NEIGHT
Member # 8741
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posted
So then I guess I gotta buy a new car just so I can H/C/I my car the right way.
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89bluenotch
Member # 7454
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posted
Over night the parts! Then bust it out! I agree though you should check it to make sure. Lil insurance policy
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sneakyfox90
Member # 9379
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posted
This is Somthing that can't be rushed don't bank on good luck
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turbo50
Member # 6700
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posted
Just dont run it for long like that or it can side load the guide, cause valve stem damage etc etc.
Improper valvetrains fuck up alot of peoples shit and cause tons of power loss. Watch your valve cover clearance on the rockers too cuz that can be very difficult to see or hear as well.....
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NEIGHT
Member # 8741
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posted
quote: Originally posted by turbo50: Just dont run it for long like that or it can side load the guide, cause valve stem damage etc etc.
Improper valvetrains fuck up alot of peoples shit and cause tons of power loss. Watch your valve cover clearance on the rockers too cuz that can be very difficult to see or hear as well.....
Yeah I kinda thought about running it for a week 2 at most with the "improper" size pushrods till I can measure it up N get the right size I mean all I would have to take off then is just the valve covers right?
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turbo50
Member # 6700
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posted
quote: Originally posted by NEIGHT: quote: Originally posted by turbo50: Just dont run it for long like that or it can side load the guide, cause valve stem damage etc etc.
Improper valvetrains fuck up alot of peoples shit and cause tons of power loss. Watch your valve cover clearance on the rockers too cuz that can be very difficult to see or hear as well.....
Yeah I kinda thought about running it for a week 2 at most with the "improper" size pushrods till I can measure it up N get the right size I mean all I would have to take off then is just the valve covers right?
I would only run it a couple days like that to get by if you HAVE to and its gonna be hard to adjust the checker with the lower intake on but I guess doable........
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Duncan Motors
Member # 7045
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posted
a dropped or broken valve can ruin a entire engine instantly. see if anybody can come check it out for u?
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NEIGHT
Member # 8741
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posted
Fuck then I guess I might just have to wait or something kuz like I said this is my daily driver N I work every weekday starting at 6 AM. Do you guys know if summit ships on weekends? I don't think they do tho
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turbo50
Member # 6700
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posted
Come borrow mine and I prolly have pushrods too...only cost u a drive till ur new shit gets here
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LXjames
Member # 10791
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posted
Neight if you want the pushrods checker I'll get from my uncle Dan turbo50 and we can check them. I got to go down to your house anyways for the cc plates remember?
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