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Author
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Topic: Pushrod length?
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NEIGHT
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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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-Savage Habits-
1992 Summer Edition
1986 Hatch- catfish killer
1964 Impala hard top
Posts: 18579 | From: EA$T $IDE REDWOOD CITY | Registered: Nov 2008
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Secnd2nun64
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Member # 1431
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posted
The instructions will give you a ball park but you got to measure. Remember that you will need chrome moly ones. You can order a pushrod checker or make one by cutting a pushrod in half and threading it for bolt stock.
6.75 roller-ballpark
7.3 flat tappet-ballpark
if your #'s are more than .05 off from that, you screwed up and will need to measure again.
I had those same heads on my 289 which are now on my my new engine. I still have the pushrods for the old setup if interested. They were for a flat tappet cam.
Posts: 1460 | From: CA | Registered: Jun 2002
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Camara90
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Member # 134
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posted
Best thing to do is measure, to many variables. Are they fresh out the box? If I remember correctly mine measured out to 6.7
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92GT,stock short block,9:1 TFS 170's,perf rpm,custom cam,1 5/8 shorties,C4 trans.
std. 356hp, 350tq
11.85@111.9mph on motor.
Posts: 2351 | From: 707 | Registered: Jan 2001
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NEIGHT
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Member # 8741
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posted
quote:
Originally posted by Camara90:
Best thing to do is measure, to many variables. Are they fresh out the box? If I remember correctly mine measured out to 6.7
Yes they are, N that's the size I thought it would be too!
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-Savage Habits-
1992 Summer Edition
1986 Hatch- catfish killer
1964 Impala hard top
Posts: 18579 | From: EA$T $IDE REDWOOD CITY | Registered: Nov 2008
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turbo50
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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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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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*1 HoT Ls1*
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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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BAY AREA STUNNAZ/
1HOTLS1/
JUST ANOTHER 10 SEC LS1
Posts: 257 | From: South City | Registered: Oct 2008
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2T0NE
Go 49ers
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
![[worship]](graemlins/worship.gif)
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Originally posted by x Raelsmar x:
Can't wait till the Giants lose tomorrow night so all you Giants fans are forced to shut the fuck up.
Posts: 14676 | From: 760 carlsbad | Registered: Mar 2004
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NEIGHT
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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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-Savage Habits-
1992 Summer Edition
1986 Hatch- catfish killer
1964 Impala hard top
Posts: 18579 | From: EA$T $IDE REDWOOD CITY | Registered: Nov 2008
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Camara90
1%
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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92GT,stock short block,9:1 TFS 170's,perf rpm,custom cam,1 5/8 shorties,C4 trans.
std. 356hp, 350tq
11.85@111.9mph on motor.
Posts: 2351 | From: 707 | Registered: Jan 2001
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moeofit32
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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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95 stroked and blown cobra
Posts: 2387 | From: antioch ca | Registered: Oct 2010
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NEIGHT
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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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-Savage Habits-
1992 Summer Edition
1986 Hatch- catfish killer
1964 Impala hard top
Posts: 18579 | From: EA$T $IDE REDWOOD CITY | Registered: Nov 2008
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moeofit32
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Member # 10393
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posted
then i suggest u not do the hci until u have the time to check last thing u wanna do is guess assemble it and something happens this push rod thing your dealing with put my stuff on hold for a week but was well worth it
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95 stroked and blown cobra
Posts: 2387 | From: antioch ca | Registered: Oct 2010
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NEIGHT
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Member # 8741
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posted
So then I guess I gotta buy a new car just so I can H/C/I my car the right way.
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-Savage Habits-
1992 Summer Edition
1986 Hatch- catfish killer
1964 Impala hard top
Posts: 18579 | From: EA$T $IDE REDWOOD CITY | Registered: Nov 2008
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89bluenotch
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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 ![[patriot]](graemlins/patriot.gif)
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-Gunnar
89 coupe
54 f100
R.I.P. SILVERLX
Posts: 1857 | From: HEALDSBURG | Registered: Feb 2007
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Saleen 00-768
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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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'00 Saleen SC #768
'90 GT
'90 California Edition (sold)
'87 Saleen #264 (sold)
Posts: 1664 | From: NOR✯CAL | Registered: Aug 2009
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turbo50
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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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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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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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-Savage Habits-
1992 Summer Edition
1986 Hatch- catfish killer
1964 Impala hard top
Posts: 18579 | From: EA$T $IDE REDWOOD CITY | Registered: Nov 2008
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turbo50
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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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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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Duncan Motors
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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?
Posts: 6310 | From: Vallejo | Registered: Sep 2006
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NEIGHT
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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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-Savage Habits-
1992 Summer Edition
1986 Hatch- catfish killer
1964 Impala hard top
Posts: 18579 | From: EA$T $IDE REDWOOD CITY | Registered: Nov 2008
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turbo50
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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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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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LXjames
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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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On Point Motorsport prez.
King Lx
Posts: 4761 | From: Pittsburg CA | Registered: Mar 2011
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