Mike 57
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Posts posted by Mike 57
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It should be a simple swap.
It will bolt to the trans, you will need a externally balanced flexplate for a 454. Possibly a starter if yours has a small flexplate. Exhaust manifolds or headers. fan shroud for a bbc. How is your radiator? All the front mounts like you mentioned. that is off the top of my head, others can chime in.
What year 454? Is it stock?
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How old is the starter? Take the back cover off and check the brushes.
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When you say it struggles to turn over, does it seem like it is tight on compression? It may be ignition timing.
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I have found that roller rockers have some noise. How long have you had your "break In" oil in it?
If it sounded like just one rocker I might pull the covers and check. If the sound is light and scattered I think it would be the nature of the rocker.
An exhaust leak will sound like a lifter ticking, it will usually go away under load.
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Nick,
What are your goals?
You are now talking pistons and possibly heads. What carb is on your setup? What gear and converter?
500 hp is a lot of snot for a N/A 383! Are you willing to accept some street drive ability issues?
I love making horsepower but it does come at a cost!
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10 to 1 with factory Iron heads, what fuel are you running? That cam duration, is it gross or at .050 lift?
Do you know the part number of that piston?
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I have to agree with Sam. The hypers are a good piston for a normally aspirated build. They are quite and stronger than cast, but the strength comes with some brittleness. A lot of the time the rings are placed too high for spray.
Sorry to be the bearer of bad news.
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Seems like a good size and the electric choke is a good thing. Looks cool with the anodized metering blocks and base plate, probably does not add to performance. I think it is a good choice.
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A double pumper is not the way to go on a mild cruiser. What cam, gear, and converter are you running? If you are dead set on a Holley check out a vacuum secondary carb. The eddy and carter carbs are a good choice for a cruiser.
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Most dual carb setups are more for the wow factor than performance.
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I am pretty sure that the 3 vent is for non vented gas cap. The 3 vent were used in 72. The tanks with a vented cap sometimes leave a trail of gas during launch. I run the 3 vent with 2 capped off and the other vents the tank. I am going to change to a 1/2 inch vent with a roll over valve when I sump the tank.
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Looks like it was out in the rain for a while
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Sorry,
All in, is a term for initial plus centrifugal advance. I run my timing at 38 degrees, There is 16 degrees of centrifugal advance in the distributor, plus 22 degrees initial at the timing mark, equals 38 degrees "all in"
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Cams have a lot of influence on vacuum. That seems like a lot of vacuum! Are you sure you are not on a "ported" vacuum source. Try to pull vacuum at another source. I don't understand your gauge!
36 is a good number for "all in" timing.
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My two cents are the same coins as Dave's
When I run exhaust it is three inch with cut outs before the X pipe.
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Calculations say that the engine needs 708 cfm at 6000 rpm and 100% efficiency. Now your engine will never see 100% efficiency on the street. If you are going to stay under 6000 rpm I would say 650 would be the best carb for you. I am assuming that the posted cam specs are "advertized" not at .050 lift.
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With your 582 you are somewhat carb limited for strip duty. What is the RPM through the traps? Do you feel it nosing over at the big end? Work with what you have and have fun. See what you can do to improve 60 foot times. It will really help the numbers.
I have that Holley pump on my 505 it works well for me. If you want to make the line change to 1/2 inch you should consider changing the pickup to one like this robbmc pickup
I would just enjoy your time at the track and work with what you have for now.
Good luck, have fun, be safe.
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Always liked these link
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I am at 38 on timing no vacuum advance. What compression and fuel?
I don't run an air cleaner at the track.
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I will put it on after I pull the motor.
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It is just hanging there! Go ahead lift it out and paint it, I dare ya!
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Good progress.
Amazed to see a picture without snow!
What did you do to your Monte Carlo today?
in General 70-72 Monte Carlo Forum
Posted
Picked up my crankshaft, pistons, rods, rings and bearings after balancing. CP pistons were perfect out of the box. Rods needed a little help. Balance bob weight worked out to 2224 grams.
Painted my block the body color.