Small Block Q's
#1547685
12/15/13 10:15 AM
12/15/13 10:15 AM
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Joined: Jan 2003
Posts: 2,981 A shed in England
Tig
OP
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OP
master
Joined: Jan 2003
Posts: 2,981
A shed in England
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Hi. I'm soon going to be rebuilding a 318 and so far have a couple of questions. The plate that fits between the oil filter and block sits too high, the centre boss holds it off the gasket. Are there different versions of this plate? (68 block for RHD, English/Australian version). I have pre owned ductile iron 273 adjustable rockers, they don't have a lock nut. Are they OK like that? does anyone do a lock nut conversion? TIA. Tig.
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials. 9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge. RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: Small Block Q's
[Re: Tig]
#1547686
12/15/13 11:30 AM
12/15/13 11:30 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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It seems the new plates dont fit well(I just went through the same thing).. either use your old plate or you can grind the center boss down.. on the rockers... they didnt come with nuts.. they have a lot of friction to keep them put
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Re: Small Block Q's
[Re: Tig]
#1547688
12/15/13 11:55 AM
12/15/13 11:55 AM
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Joined: Jan 2003
Posts: 5,903 Florida
Locomotion
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master
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Florida
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Quote:
Hi.
I have pre owned ductile iron 273 adjustable rockers, they don't have a lock nut. Are they OK like that? does anyone do a lock nut conversion? TIA. Tig.
You can get the appropriate screws & locknuts, but the rocker arms should be correctly spot-faced for the locknut. The original surface has high spots which can stress and break the screws.
I had the loosening problem when I first tried using the OEM 273 set-up in race applications as well.
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Re: Small Block Q's
[Re: MR_P_BODY]
#1547689
12/15/13 11:55 AM
12/15/13 11:55 AM
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Joined: Jan 2003
Posts: 2,981 A shed in England
Tig
OP
master
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OP
master
Joined: Jan 2003
Posts: 2,981
A shed in England
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Thanks. However, I thought I might tap the block for external lines but was worried about stressing the block with tapered fittings. Am I being over cautious there? It's just a street strip 6000 rpm deal. With the car being rhd the oil filter is in the way of the steering linkages/box. The method chrysler used (steel lines and a huge block fitting) is rubbish (garbage), they leak like a ruptured oil tanker and you can't buy spares for them anywhere. Nobody do any lock nuts for these rockers? I'm just unsure about them, I had a similar set up on a F**d Capri (cologne engine) solid lifters but they kept coming loose Thanks again.
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials. 9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge. RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: Small Block Q's
[Re: MR_P_BODY]
#1547691
12/15/13 01:18 PM
12/15/13 01:18 PM
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Joined: Jan 2003
Posts: 2,981 A shed in England
Tig
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OP
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Joined: Jan 2003
Posts: 2,981
A shed in England
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What size did you tap the holes?
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials. 9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge. RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: Small Block Q's
[Re: Tig]
#1547692
12/15/13 01:24 PM
12/15/13 01:24 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
What size did you tap the holes?
If I remember right its a 3/8 pipe tap... the center hole is the return
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Re: Small Block Q's
[Re: MR_P_BODY]
#1547693
12/15/13 03:26 PM
12/15/13 03:26 PM
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Joined: May 2004
Posts: 3,210 robin hood country
deaks
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master
Joined: May 2004
Posts: 3,210
robin hood country
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Tig I had a 360 Duster last year with the same rockers and had a similar problem with one coming loose. The guy that bought the car off me, is thinking of replacing them. I wouldn't want to use them with 400 hp. cheers Mick
69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200# best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft best 60ft 1.36
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Re: Small Block Q's
[Re: deaks]
#1547694
12/15/13 05:07 PM
12/15/13 05:07 PM
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Joined: Jan 2003
Posts: 2,981 A shed in England
Tig
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OP
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Joined: Jan 2003
Posts: 2,981
A shed in England
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Hey Mick. What kind of cam/lift?
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials. 9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge. RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: Small Block Q's
[Re: Tig]
#1547695
12/15/13 08:14 PM
12/15/13 08:14 PM
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Joined: May 2004
Posts: 3,210 robin hood country
deaks
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master
Joined: May 2004
Posts: 3,210
robin hood country
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Not sure Tig but i'll see if i can find out. It was a comp cams hyd. What are your plans? or is it a secret. Mick
69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200# best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft best 60ft 1.36
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Re: Small Block Q's
[Re: deaks]
#1547696
12/15/13 10:49 PM
12/15/13 10:49 PM
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Joined: Jan 2003
Posts: 2,981 A shed in England
Tig
OP
master
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OP
master
Joined: Jan 2003
Posts: 2,981
A shed in England
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Oh it's no secret. Simple street strip build KB 167's Comp xe 268 hydraulic and nicely worked 308 hi swirl heads.
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials. 9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge. RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: Small Block Q's
[Re: Tig]
#1547697
12/15/13 11:05 PM
12/15/13 11:05 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Oh it's no secret. Simple street strip build KB 167's Comp xe 268 hydraulic and nicely worked 308 hi swirl heads.
To be honest I dont think you will have any problem running those rockers on a hyd cam... they wont be banging around
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