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#21
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HO428, what's difficult about building a 600 hp 310 ci Pontiac? A 400 block,short stroke crank, good heads and cam, I don't see 8000rpm and 600 hp an issue.
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#22
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Quote:
He did not do the 7.080" long rod deal but used 421 SD connecting rods and a long compression height light weight piston and pin. A 310" engine would require a custom short stroke crank and probably a 7.240" long rod but it would be a very durable 8500 rpm package. Remember "All of the rotating mass and 1/2 of the reciprocating mass". Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#23
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Building a 4.0 x 3.0 Pontiac, short deck, is a custom one off engine. Also, getting over 2 hp per cu in from said engine is trial and error. Running 8000 rpm for an hour several times a weekend is another unknown.
If lightweight short deck blocks were readily available, 3" strk cranks, perhaps with smaller mains, intakes and headers, maybe, but none of that is off the shelf. It can all be done, but a sbc is basically orderable from multiple sources. Not trying to detour Curt's thread, but I understand the swimming against the tide, after awhile it becomes futile.
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#24
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EHTTFMF! Being dead, it is not hard on you. You don't even know you're dead. It is hard on everyone else that is not dead. BEING STUPID WORKS THE SAME WAY! The rest of us suffer. |
#25
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Quote:
301t block?
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1994 Formula 535ci NA CV-1 - single 1050 with c14 - 940hp@7000/825tq@5200 Pontiac Powered 4th Gen Project Progress |
#26
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I'd honestly be afraid to sink that much money into a one off race engine built around a 301T block.
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#27
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Mike, can you lay out a non-all out plan for your comment on "very, very doable". "Without exotic parts". I've always dreamed of building a high RPM small cube Pontiac but like ho428 said, basing it off of a 301T, while doable, I don't think it would be very reliable. I started out to build a 370 using a '58 block and original forged crank, but the big detour for me was finding main bearings. I never went any deeper than easily available bearings (having special specific bearings made etc., if that is even possible) and then fighting the rear bell housing changeover (which I did do on my present '60 389 block 406. Anyway. If you know of an easier available/usable block I would be grateful to hear about. Although I'm not sure I'll ever get to building any small cube Pontiacs in my time line anymore. Getting too old and too broke, LOL!Thanks Mike.
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My Gasser '63 Catalina build. Oh sorry, it's a Street freak. Either way it's a fun build. |
#28
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Does anyone know if the big bearing companies will even build special spec bearings or even make some off of your old stock bearings? I never got that far. I did find a full set from EGGE but they could not tell me where they came from, who made them, or of their composition. The only markings were the sizes stamped on the back, nothing else. I tried having spacers made by a machine shop but that turned out to be a mess, and then it came to making or adapting a rear seal. That really did it in.
I know John Kaase did it for his Engine Masters build a while ago, so I guess I should ask him if he would divulge his secrets. I know he's a good guy to talk to.
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My Gasser '63 Catalina build. Oh sorry, it's a Street freak. Either way it's a fun build. |
#29
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I'm still waiting to hear what parts Curt gave up on that drove him to his decision.
Must be some exotic stuff since most of what's out there is out there.
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#30
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Almost any one part can be acquired fairly quickly if you want and need it badly enough. I don't think that was Curt's point. But if you want to build a Pontiac engine that can do certain things very well(maybe even best), it is quite a process to get it done. We are trying to do something that hasn't already been done a thousand times. Or you can make a phone call or two and get a Chevy that has been proven to do exactly what you need.
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69 Firebird, 536, Wideports, Cal Tracs, 275 radials, 3200#, a little spray 7.75 @ 173, 4.92 @ 142 |
#31
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[QUOTE. Or you can make a phone call or two and get a Chevy that has been proven to do exactly what you need.[/QUOTE]
Where's the challenge in that! |
#32
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If this was a machine shop issue then how does switching brands help?
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#33
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Curt do you still have the Twin 88 Turbo GTO > Pontiac power 455 Style - sure liked that car. Saw it run a 6.99 in the 1/4 mile on Pass Time - the Pass Time Host and panel sure raved about it
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The Bandit Rules - Make mine with a SD-455 Engine . |
#34
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It was not a machine shop issue --- you have all seen on this board the different "new" products that seem to take years to actually hit the work bench -- excuse after excuse I have run into that one to many time, as I have talked to a lot of guys since posting this issue it seems a lot are in the same boat -- ie; cant get a block -- or cant get heads for 2 or 3 years. Carrying the Pontiac banner was always fun for me but it has become way to much of a burden anymore -- Kinda sad really -- guys with a pocket full of money and vendors can not get there act together.
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#35
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no it got sold - thanks for asking
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#36
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And that's what I did -- on my door step in 3 weeks dyno tested and ready to go |
#37
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And that's what I did -- on my door step in 3 weeks dyno tested and ready to go[/QUOTE] Really?
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#38
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And that's what I did -- on my door step in 3 weeks dyno tested and ready to go[/QUOTE]
Are you saying you changed directions and it didn't take a minimum of a year to FINALLY GET BACK ON THE TRACK? I'm sure it'll be some decent Cubic inches and some pretty good power...... Care to share some info on the new bullet for your bada$$ whip?
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"You have to evaluate the past,Focus on the future,and that tells you what you have to do in the present"--Lou Holtz “It’s the process it takes to get to goals that sets us apart, the execution on every single play, one play,one life” Notre Dame Head Coach Marcus Freeman 69 GTO NHRA Super Street Car 2860lbs 10.890@157.08 MPH in Iowa in June’23 ,157.56 MPH in Gainesville in March ‘23 |
#39
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What class are you running in?
What CID and HP of the new engine? Price? I thought you ran Super Comp or something?
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
#40
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Quote:
GTO George |
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