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#21
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Darby 74 Grandville 2Dr 455 c.i 4550# 2011 1.60 60 ft,7.33@94.55-11.502@117.74 2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32 M/T 275/60 ET SS Drag Radial 2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's |
#22
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factory big Journal Core after a SD or just a good core? |
#23
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Anyone can spend their money anyway they want. Its America and a great place to live. Based on my experiance with stock blocks and aftermarket ones I think there is more value in the aftermarket piece than making a stock block a race inspired one. I'm redoing a stock block for my street strip car now. With billet main caps on it and a couple hundred passes the caps have moved a bit and I'm having to redowel them. Redo the line hone and so on. Aftermarket block has dowels and registers. This would not have happened. Bore size is another huge gain with them as well. I do own one iron ia2 and 2 aluminum ones. The value is obvious to me.
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Be carefull of the feet you step on today.They may be attached to the a$$ you kiss tomorrow. |
#24
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Trust me, If I could afford your advice, we would not be having this discussion. With that said, do you know what the rotational weights where on the engine above? What RPMs did you subject it to? What was the approximate HP? I find the answers to those questions more valuable to my project then any advice to strap my factory block to a chain and use it for an anchor. LOL JK, I know thats not what you said... just playing. SPEED SAFE, NICK
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"The grass is not greener on the other side, its just fertilized with different $h!t" |
#25
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Bob weight 2029. 4.210 stroke 4.181 bore. Operates in the low 6000 range.
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Be carefull of the feet you step on today.They may be attached to the a$$ you kiss tomorrow. |
#26
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At the same time, mine will be more dedicated to the street with a few trips down the strip. The suspension will be set up more for twistiest than straight line and will run tires best suited for my time out at the Miami International Speedway road course (13 turns) (Recreation), so I dont think I will experience any "dead hooking" off the line which I think has a whole lot to do with the stress the block sees. I feel the tires will dust off before they hook. My goal is to set it up to run cool around the course without any major over heating issues... and once that's accomplished hit the Power Tour. Hopefully it will last a couple years and I can save up for an aftermarket aluminum block in the meantime. Thanks for sharing your Bobweights on that engine!!! SPEED SAFE, NICK
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"The grass is not greener on the other side, its just fertilized with different $h!t" |
#27
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Johnny- Nothing wrong with the Ross pistons. I personally wouldn't do a 4.5" stroke crank in a stock block. Especially a 3 1/4" main block. My choice between the 2 blocks would be the 428 block.
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Come take a ride http://www.youtube.com/watch?v=P7Y8Awfk2I0 2008, 2013, 2015, 2016, 2019 Central Il Dragway Mod track champion and 2015 IHRA Div 5 Mod champion |
#28
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Thank you everybody for your input and advice. Building one with a stock block seems comparable to building a stout motor with a 557 block, it may or may not live. For the time being, I think I will build the 428 as originally planned, with the 990 forged crank and .030 Venolia pistons and ESP rods. I will look around and see if I can find a feasible 3.25 main aftermarket block or perhaps sell a car and spare kidney for a new block. Otherwise, I'll do the best I can with a factory block and cross my fingers (no nitrous) and hope my luck continues...
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Johnny US Army Retired 1978 T/A 463 Pontiac, KRE 74cc 292CFM D-ports, Lunati VooDoo, V-max lifters, TKII, ATM 850 E85 carb, TCI TH-350 race tranny, 3600 converter 3.73 12 bolt 11.63@116.68mph 1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3.42 30 spline Eaton posi street car. 1980 Formula 350 Pontiac back burner project 1972 LeMans 350 Pontiac |
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