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First Generation R block owners #2316869
06/05/17 09:53 PM
06/05/17 09:53 PM
Joined: Apr 2007
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RAY1969CARS Offline OP
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RAY1969CARS  Offline OP
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How much power can a 48° block Handled not filled ??

Re: First Generation R block owners [Re: RAY1969CARS] #2316872
06/05/17 09:58 PM
06/05/17 09:58 PM
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Porter67 Offline
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What application?

Whats the blocks history?

I think you could spray one to 800 off a controller if you can keep head gaskets in it, boost even more.

I ask history as if its had a service life in any circle track setting they can be fatigued where on in a drag car could almost last forever if never hurt.


Re: First Generation R block owners [Re: Porter67] #2316881
06/05/17 10:06 PM
06/05/17 10:06 PM
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RAY1969CARS Offline OP
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Drag racing. Carbureted 150 shot of nitrous block is nos

Re: First Generation R block owners [Re: RAY1969CARS] #2316916
06/05/17 11:46 PM
06/05/17 11:46 PM
Joined: Jan 2003
Posts: 8,005
Tulsa OK
Bad340fish Offline
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Tulsa OK
Can't say for sure until you sonic check it really.


68 Barracuda Formula S 340
87 "Chrysler" Conquest
Re: First Generation R block owners [Re: Bad340fish] #2317016
06/06/17 04:29 AM
06/06/17 04:29 AM
Joined: Jan 2003
Posts: 6,130
Melbourne , Australia
LA360 Offline
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LA360  Offline
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Melbourne , Australia
Sonic test, they're not siamese bores from memory.


Alan Jones
Re: First Generation R block owners [Re: LA360] #2317017
06/06/17 04:32 AM
06/06/17 04:32 AM
Joined: Jan 2003
Posts: 6,130
Melbourne , Australia
LA360 Offline
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LA360  Offline
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Melbourne , Australia
I wouldn't stress about putting some grout in it if it is going to see the street either.


Alan Jones
Re: First Generation R block owners [Re: RAY1969CARS] #2317179
06/06/17 04:11 PM
06/06/17 04:11 PM
Joined: Sep 2012
Posts: 1,563
Janesville, WI
SpareParts Offline
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Originally Posted By RAY1969CARS
Drag racing. Carbureted 150 shot of nitrous block is nos


I think you're fine. I did that stuff with a stock block

Re: First Generation R block owners [Re: SpareParts] #2317182
06/06/17 04:15 PM
06/06/17 04:15 PM
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Posts: 20,116
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pittsburghracer Offline
"Little"John
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I would have a short deck one going together right now but I am forced to go with W7 heads and I have the Jessel rockers and intake. It's currently on hold till I find some at a decent price. I've been lead to believe that with the cam and pistons I have it would be in the 750 HP range. Time will tell


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: First Generation R block owners [Re: RAY1969CARS] #2317237
06/06/17 06:40 PM
06/06/17 06:40 PM
Joined: Oct 2011
Posts: 3,036
bean town ....Ca
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WHITEDART Offline
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bean town ....Ca
Nitrous oxide and ignition systems have came a long ways and are not nearly as hard on Motors when used correctly.. I'm betting 800hp.. is possible if done right... who ended up doing your machine work...


In the 8s N/A.with Brett miller W8's
5.07 at 133 at 2700lb
Re: First Generation R block owners [Re: RAY1969CARS] #2317526
06/07/17 09:08 AM
06/07/17 09:08 AM
Joined: Jan 2003
Posts: 426
Cairns Queensland Australia. T...
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vc360 Offline
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Cairns Queensland Australia. T...
I have one and it's been making between 750 and 800 aspirated, it's a little thin at 4.100.

Re: First Generation R block owners [Re: RAY1969CARS] #2317527
06/07/17 09:16 AM
06/07/17 09:16 AM
Joined: Jan 2009
Posts: 1,044
Victoria, Australia
Ian Offline
super stock
Ian  Offline
super stock

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Posts: 1,044
Victoria, Australia
i was making 800 with gas on a early 360 block with fill ,i am looking at a 850 to 1000 with the r block w7 build i am doing now


1.37 60 ft [email]6.0@113[/email] [email]9.57@141[/email] 408 glide 3550lbs
new video http://www.youtube.com/watch?feature=player_embedded&v=Xvq3ZObywQE
Re: First Generation R block owners [Re: vc360] #2317537
06/07/17 09:51 AM
06/07/17 09:51 AM
Joined: Apr 2007
Posts: 1,390
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RAY1969CARS Offline OP
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Originally Posted By vc360
I have one and it's been making between 750 and 800 aspirated, it's a little thin at 4.100.


Wow that's a lot of power was it a 48° block or 59

Re: First Generation R block owners [Re: RAY1969CARS] #2317581
06/07/17 11:54 AM
06/07/17 11:54 AM
Joined: Oct 2007
Posts: 3,978
Hilltown Pa
1967dartgt Offline
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I go 162mph with a r1a 48° block at 3215 lbs. Use 200hp worth of nitrous to get there.


Brett Miller W9 cnc'd heads
STR Chassis fabraction
Re: First Generation R block owners [Re: RAY1969CARS] #2318691
06/09/17 10:29 PM
06/09/17 10:29 PM
Joined: Jan 2003
Posts: 426
Cairns Queensland Australia. T...
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vc360 Offline
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Cairns Queensland Australia. T...
Originally Posted By RAY1969CARS
Originally Posted By vc360
I have one and it's been making between 750 and 800 aspirated, it's a little thin at 4.100.


Wow that's a lot of power was it a 48° block or 59


Its an R block first generation 48 with W9's. Its been 139 at 3520.

Re: First Generation R block owners [Re: vc360] #2319271
06/11/17 03:07 AM
06/11/17 03:07 AM
Joined: Apr 2007
Posts: 1,390
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RAY1969CARS Offline OP
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Originally Posted By vc360
Originally Posted By RAY1969CARS
Originally Posted By vc360
I have one and it's been making between 750 and 800 aspirated, it's a little thin at 4.100.


Wow that's a lot of power was it a 48° block or 59


Its an R block first generation 48 with W9's. Its been 139 at 3520.



Did you push the lifter boars ??? I was told not to do it that they were to thin

Re: First Generation R block owners [Re: RAY1969CARS] #2319297
06/11/17 07:10 AM
06/11/17 07:10 AM
Joined: Jan 2003
Posts: 426
Cairns Queensland Australia. T...
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vc360 Offline
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vc360  Offline
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Originally Posted By RAY1969CARS
Originally Posted By vc360
Originally Posted By RAY1969CARS
Originally Posted By vc360
I have one and it's been making between 750 and 800 aspirated, it's a little thin at 4.100.


Wow that's a lot of power was it a 48° block or 59


Its an R block first generation 48 with W9's. Its been 139 at 3520.



Did you push the lifter boars ??? I was told not to do it that they were to thin


No lifter bushes and the lifter bores are mint. Mine is very basic no gas ported pistons or anything exotic.







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