Dave Robsons Challenger R/T
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- Dave-R
- Posts: 24751
- Joined: Sun Apr 18, 04 11:23 pm
- Location: Dave Robson lives in Geordieland
- Contact:
Pushrod clearance took a lot of grinding work because my pushrods are now a) slightly on the short side and b) fitted with 1.6:1 ratio rockers.
These heads really need 1.5:1 ratio rockers and pushrods on the long side to save you a lot of hassle. Probably still need some work even then.
I didn't want to be grinding in the garage because of the dust so have only be able to work outdoors at weekends when the weather was OK.
It should go together very quickly now though.
These heads really need 1.5:1 ratio rockers and pushrods on the long side to save you a lot of hassle. Probably still need some work even then.
I didn't want to be grinding in the garage because of the dust so have only be able to work outdoors at weekends when the weather was OK.
It should go together very quickly now though.
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- Trial fit to make sure intake fits OK without machining for the thick gaskets.
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- Dave-R
- Posts: 24751
- Joined: Sun Apr 18, 04 11:23 pm
- Location: Dave Robson lives in Geordieland
- Contact:
Didn't want to make the mistake of lapping and fitting the valves (like I did on the other head) before checking if any more work on them was needed.baccaruda wrote:ps don't forget to fit da valves LOL!
They look very nice painted up a bit.
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- Dave-R
- Posts: 24751
- Joined: Sun Apr 18, 04 11:23 pm
- Location: Dave Robson lives in Geordieland
- Contact:
Not sure that it is the heads. They flow about the same. Could be. But better quench, fresh valve seats, and spanking clean valves are probably a factor.
Or maybe I have just forgotten how good this car can be when everything comes together right.
More noise from the engine though. As if the heads don't sound proof as well as iron. Sounds like a 8 second dragster more than a street car. I had to check the exhaust cut-outs were fully closed.
Or maybe I have just forgotten how good this car can be when everything comes together right.
More noise from the engine though. As if the heads don't sound proof as well as iron. Sounds like a 8 second dragster more than a street car. I had to check the exhaust cut-outs were fully closed.
yes those alloy heads are a little louder for sure, more valve train noise,Dave wrote:Not sure that it is the heads. They flow about the same. Could be. But better quench, fresh valve seats, and spanking clean valves are probably a factor.
Or maybe I have just forgotten how good this car can be when everything comes together right.
More noise from the engine though. As if the heads don't sound proof as well as iron. Sounds like a 8 second dragster more than a street car. I had to check the exhaust cut-outs were fully closed.
Glad you got it running
Now that's a very interesting observation. Could explain away some of the racket my motor makes......drewcrane wrote:yes those alloy heads are a little louder for sure, more valve train noise,Dave wrote:Not sure that it is the heads. They flow about the same. Could be. But better quench, fresh valve seats, and spanking clean valves are probably a factor.
Or maybe I have just forgotten how good this car can be when everything comes together right.
More noise from the engine though. As if the heads don't sound proof as well as iron. Sounds like a 8 second dragster more than a street car. I had to check the exhaust cut-outs were fully closed.
Glad you got it running
68 Road Runner = Engine delivery system
Pure Mopar!
Keep Runnin...
Pure Mopar!
Keep Runnin...
- Rogue Trooper
- Posts: 1792
- Joined: Wed Feb 01, 06 8:19 pm
Hi Dave,
After all those years of Iron, you finally gave up and went Ali!
If only you had listened 5 years ago LOL!
You need to cane it down the track and see what time it runs?
100lbs of the weight gotta be an advantage!
Over a 1000-posts, nice one Dave.
Don't think the Corvette will do the same?
Bacman.
After all those years of Iron, you finally gave up and went Ali!
If only you had listened 5 years ago LOL!
You need to cane it down the track and see what time it runs?
100lbs of the weight gotta be an advantage!
Over a 1000-posts, nice one Dave.
Don't think the Corvette will do the same?
Bacman.
- Dave-R
- Posts: 24751
- Joined: Sun Apr 18, 04 11:23 pm
- Location: Dave Robson lives in Geordieland
- Contact:
Only went ali heads because the new owner paid for them Bacca. They were a pain in the butt to fit too.
Iron is still the best head material ever.
The Chally is being picked up and taken to Europe next Saturday.
Meanwhile I just spent the afternoon having a very nice drive in a car almost as fast but returning an average of 28mpg.
Iron is still the best head material ever.
The Chally is being picked up and taken to Europe next Saturday.
Meanwhile I just spent the afternoon having a very nice drive in a car almost as fast but returning an average of 28mpg.
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- Adrian Worman
- Posts: 4376
- Joined: Mon Aug 02, 10 1:23 pm
- Location: Milton Keynes
Nice one Daveman, you got it thenDave wrote:Only went ali heads because the new owner paid for them Bacca. They were a pain in the butt to fit too.
Iron is still the best head material ever.
The Chally is being picked up and taken to Europe next Saturday.
Meanwhile I just spent the afternoon having a very nice drive in a car almost as fast but returning an average of 28mpg.
Jesus built my hot rod
72 Challenger
65 Barracuda
72 Challenger
65 Barracuda