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#181
06-04-2008, 07:42 PM
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Quote:
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Just a blind squirrel looking for a nut. |
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#182
06-04-2008, 07:43 PM
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Quote by Lynn:
"An engine with Tiger/KRE heads, IA/KRE block, bryant/crower/Asian crank, dominator carbs, BOP/Tiger/KRE manifolds, 4.40 bore, some crazy kind of stroke, and you guys call it a Pontiac motor? Billet heads? Maybe we should call it a newly improved facsimile of a Pontiac motor on Steroids?" Well Lynn there was a guy who set a few records at Bonneville and other places. He cast up his own blocks, made his own heads, put in 4.5" cranks, made his own injection and blower manifolds, made his own pistons and rods, valvetrain, camshafts, etc. Everyone considers his stuff to be PONTIAC PARTS. I think his name was Thompson. Quote by Eric: "IAII block 4.500 stroke 4.250 bore billet heads...our own design based on Ram Air V approx. 6:1 compression 14-71 80-90% nitro MSD Pro Mag 44 Crowerglide 2-speed Lenco" Should be a great combo Eric!! 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. |
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#183
06-04-2008, 07:57 PM
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Actually top fuel HEMIS are using long arms! most are in between 4.185-4.205 bore and use 4.50 Stroke very similer to a stroker pontiac, the small bore is used because of the extreme heat and stresses, also allows more meat in between cyl walls.
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D.S.R.E. Your NW Pontiac Street/Strip Engine Builder, Specializing in Cylinder Head,Intake Manifold,and Exhaust Manifold Porting services and Building the Most Efficient stock rebuilds to Hi HP Pump Gas and Race Combinations for Pontiac,Buicks,Olds,FE Fords,385 Series and HP Gen 3 and 4 LS engines! 2006 silvy Z71 4X4,383 LS 600+hp NA Shared Toy-66 Lemans 470cid by me 537hp 580tq-manifolds, 570hp 590tq-2"headers,custom cam,rpm intake, mild e-heads, Looks stock ;-} |
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#184
06-04-2008, 08:01 PM
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Quote:
Typical topfuel bore/stroke is 4.187/4.50= 500ci |
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#185
06-04-2008, 08:36 PM
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Hmmmm, I thought the 4-3/8" crank was still used.
__________________
Just a blind squirrel looking for a nut. |
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#186
06-04-2008, 08:38 PM
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The primary motivation for the 4.500 stroke is that we own (3) good 4.500 cranks and we have been assured by our experienced nitro advisors that a blown nitro engine will not care much about B/S and R/S ratios. The 4.500 stroke will spin happily to 8000 rpm in our nitrous engine and we may not need to wind the nitro combnation that tight.
Our claim to the Pontiac heritage is retention of stock bore spacing, head bolt pattern and valve cover pattern. Should be an incredible ride...........it can't be done soon enough. Eric |
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#187
06-04-2008, 10:15 PM
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This thread has gotten completly off the original topic. Maybe that's a good thing?
Eric |
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#188
06-04-2008, 10:33 PM
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Quote:
 
__________________
Just a blind squirrel looking for a nut. |
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#189
06-05-2008, 12:23 AM
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Quote:
While this thread is about something else, I agree - we might as well call it a Chevy - they have Donovan blocks, Dart heads, China iinternals, etc and still are "Chevy"? This is just Pontiac brand loyalty with a big aftermarket budget. Carry on...... |
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#190
06-05-2008, 12:37 AM
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Particularly guys who run all mostly OEM castings  Lynn Last edited by NHRASuperStock455SD; 06-05-2008 at 12:48 AM. |
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#191
06-05-2008, 07:31 AM
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Oh, come on, Lynn...the aftermarket blocks out there will take any factory part, why wouldn't they be a Pontiac? You talk of stroke, well...NHRA Super Stock rules allow for increases in stroke, albeit they are minute...longer stroke no longer make it a Pontiac? We respect you SS guys for running hard with factory parts...why the disrespect for guys that run even harder with aftermarket parts?
__________________
Just a blind squirrel looking for a nut. |
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#192
06-05-2008, 08:23 AM
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Super Stock engines have non-factory parts in them. Everybody choses their own point to draw the line. I can't really see that there is a black & white answer to this debate.
Let me propose this test for the Pontiac fans: When we get the Boss Bird done, I'll lift the body for you. If you feel happier that it is a Pontiac facsimile engine instead of a Chrysler hemi facsimile, then it qualifies as a Pontiac. Agreed? Eric |
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#193
06-05-2008, 12:36 PM
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Quote:
John Langer is doing a great job with a terrific engine builder. I support him 100%. Lynn |
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#194
06-05-2008, 01:44 PM
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Quote:
Lynn |
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#195
06-05-2008, 01:57 PM
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Quote:
Eric |
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#196
06-07-2008, 03:22 PM
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If someone reproduced the entire 1970 SOHC 427 Pontiac Hemi engine would you call it a Pontiac or some sort of a custom race engine.
I would call it a Pontiac,its based on a Pontiac.Hell that thing was a factory Pontiac and it was more advanced than some full custom race engines. We have devolved. What could have been.The big dogs are still playing around with pushrod engines and that thing was around in 1970. Make it again and the tables are turned. |
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