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    Big Block Low Deck engine install in 68 Dart

    A prayer to Allah helps.....
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    Favorite Big Block Roller Rockers

    The problem with the ^ 'certain number of cycles' ^ is that nobody knows what that number is...... Steel & S/steel do not have that problem. Considering the choice available now in steel rockers compared to a few years back & the good price, it beats me why anybody would risk using alum rockers.
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    Favorite Big Block Roller Rockers

    Steel or s/steel. Not alum.
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    Crane CCH-312-2-NC

    If more low end is your goal, then the cam in question has 15-20* too much duration [ at 050 ].
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    Crane CCH-312-2-NC

    I also have a 2010 Crane catalog. Both cams are listed, 112 LSA & 108 LSA. 112 cam grind# is H-312-2; 3200-7000 rpm range. 108 # is H-242/3520-2-8; 3600-7200 rpm range. So I think it is the 112. Crane had an epiphany after D. Vizard tested 000s of cam combinations for him & the result is many...
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    Crane CCH-312-2-NC

    That cam is in my 1984 Crane Catalogue. LSA is 112. First words in the description are 'Rough idle'. The problem with a 4 speed is going to be surging, pig rooting at low rpms, as well as the rough idle. Removing the c'ter removes the hydraulic cushion you had in the drive line to absorb...
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    383 camshaft

    Is there a question?
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    Do you let your old engine warm up or just get in and drive?

    One of the reasons taxi & commercial engines last longer than engines that do short trips......is that they are at operating temps for long periods, where the parts are working 'together' for longevity & minimal wear. With that in mind, I drive my car as soon as it is running, because loading...
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    Holley 0-80508s 750cm 4160

    An Edel 625 AVS2 would be best for that engine. The small primaries with annular boosters will help with the soggy low end that single plane intakes have.
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    Timing Jumping Around

    A couple of comments. He mentions the dist 'gasket' in the video. Early dists did not have the o ring to seal the dist to the block. The gasket is for those early dists. I doubt that the backlash in the gears is affecting the timing, UNLESS the oil pump is sucking air [ aerated oil ]. A...
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    Timing Jumping Around

    Was the vac adv hooked up while you were checking timing? Should be disconnected & plugged.
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    Big Block Weight Differences

    Difference between a LB & a RB block is 10 lbs. Listed in the Atherton & Schreib Mopar book. 215 & 225 lbs.
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    Big Block Weight Differences

    I am pretty sure the BB factory iron heads [ bare ] weigh 44-45 lb. Valves, springs do not enter the equation because they are needed with any head. Now, I could be wrong about the weight but I am 95%+ sure. Valves with alum heads might be lighter if they have 11/32" stems.
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    Big Block Weight Differences

    I doubt it will be as much as 70lb, more like 40-50. BBM heads are not as heavy as some BB heads, so there is less weight saving.
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    Isky 264 Mega in a 400

    Quite good idle quality. Not dead smooth, but not rough either. Used with a TQ carb.
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    Isky 264 Mega in a 400

    I have run one in a 400 Pontiac, similar comp ratio. Runs very well. The tight LSA that Isky uses is good.
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    What’s the best rods for the build

    Any H beam rod. Better metallurgy & uses a bigger bolt [ 7/16" ] v factory 3/8". And the H beams use bolt only, not nut & bolt. The greatest benefit over the factory rod is the factory has a cut in the shank to take the bolt head; that weakens it. H beams do not have this built-in weakness.
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    440 Build Change of Plans

    Mopar R&D, What episode of EM made 40 ft lbs more tq using a small-ish cam & switching from 240 to 270TF heads. Can you post the link, I would like to see it. Thanks.
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    440 Build Change of Plans

    What JD said. I built a 440 a couple of years back using TF 240 heads. With their cam package, the quoted HP was over 600, 624 I believe. [ On TF website ]. Another example where bigger is not always better....
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    Header bolts or studs?

    With alum heads, try to use studs so that all of the threads are engaged in the soft alum; no stripped threads. Studs can be fitted after the headers are put in place to make install easier. Cut the studs to the desired length. Cut/grind a screwdriver slot in one end. Screw the stud in with a...
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    Valve spring installed height

    If you use + or - 050 keepers, which is one way you can go, check the measurement. I have found they often provide less than 050.
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    Best dual plane intake for 400 low deck

    With a 400 in a C body, you will need all the low end tq you can get. People forget that before you can get to 4000 rpm, you have to get to 2000 rpm first.....
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    Best dual plane intake for 400 low deck

    Only on a BIG lawnmower......
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    Best dual plane intake for 400 low deck

    Agree with others: Performer + TQ.....for heavy car & tall gearing.
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    Viton vs Teflon valve seals

    Are the seals sold as Teflon......really Teflon......or plastic. I know the Teflon seals sold by Crane years ago were just plastic because they would split easily during installation.
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    Running Main Bearing Inserts To use A 383 Journal Crank In a 440 Block

    I am talking about a running engine. In a running engine, the heat in the brg shell gets transferred to the surrounding metal. Ever see a brg shell fall out of it's location? That is because it overheated & the steel backing lost it's 'spring'. You might use brg inserts on a rare vintage...
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    Running Main Bearing Inserts To use A 383 Journal Crank In a 440 Block

    Apart from the miniscule benefit of reduced brg speed [ friction ], using an 'insert' is more likely to cause failed brgs. The brg shell transfers heat to the block/cap. Having another layer of metal there is going to reduce the amount of heat that can be transferred.
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    Running Main Bearing Inserts To use A 383 Journal Crank In a 440 Block

    If you are worried about brg speed, never run a 421/428/455 Pontiac, they have 3.25" mains! I wouldn't do it, hardly worth the trouble for 1/8" difference. I did a quick calc: brg speed is reduced by 4.6%.
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    383 rods dilemma

    Unless the rods AND pistons being used are the same weight as factory pieces, the rotating assy will need balancing. New H beam rods are a good investment. They are made of stronger steel, are lighter, have bigger/stronger bolts [ 7/16" v 3/8" ] but most importantly, they are stronger in an area...
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    400/470 - Cam Bearing Question

    You actually have it about perfect, 'split the difference'.
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