Re: Build me a 9.90 small block
[Re: sleepyhead416]
#429270
08/06/09 06:29 PM
08/06/09 06:29 PM
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Joined: Jan 2003
Posts: 465 Oconomowoc, WI.
Cudahlr
OP
mopar
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OP
mopar
Joined: Jan 2003
Posts: 465
Oconomowoc, WI.
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Any comments on what brand of crank and rods are preferred and why? Thanks.
1968 Barracuda 360/727 11.20 @ 121 mph 421 rwhp 1985 Harley Sportster Bobber 2006 Ram 2500 sport - The Cudahlr
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Re: Build me a 9.90 small block
[Re: Hot 340]
#429272
08/06/09 06:59 PM
08/06/09 06:59 PM
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Joined: Jan 2003
Posts: 8,547 State College, PA
RyanJ
moparts member
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moparts member
Joined: Jan 2003
Posts: 8,547
State College, PA
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Quote:
Quote:
Any comments on what brand of crank and rods are preferred and why?
Thanks.
Id recommend the one dragrcr97 had in his last build. https://board.moparts.org/ubbthreads/show...c=1#Post5387461
I'm not building Ron anything, he is building it himself, I'm just selling him the proper components & machining.....he's plenty capable of putting it together.
If you think his old 4.375 LA enterprises crank was cool....... uh his new one will blow your mind. We should have it in 8-9 weeks.
I'd say it will have no problem running 9.70-9.80's on pump gas with mild Hyd roller, if he can ever get it to hook.
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Re: Build me a 9.90 small block
[Re: RyanJ]
#429273
08/06/09 07:11 PM
08/06/09 07:11 PM
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Joined: Jan 2003
Posts: 8,547 State College, PA
RyanJ
moparts member
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moparts member
Joined: Jan 2003
Posts: 8,547
State College, PA
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On a side note, we just got a new '72 Challenger out last weekend at Beaver Springs.... Buddy of mine from State College
3260# race weight, 14.5 Quick time Pros, 727/8" ATI/Moser S60 4.10's, 3" exhaust with bullets....
436 CID, 4.125" K1 crank, 4.10 bore 11:1 pump gas mild 268 @ .050" Roller, .720" TTI off shelf W2 1 7/8 headers Old hand port arrington heads/intake 340/250 cfm 1050 Dominator
No traction, best 60' was 1.58, most 1.64-1.68's
Went 10.26 @ 136.1 MPH first time car was ever down a track.
96 degrees, 70% humidity/ 29.4 Baro. No tuning.... Made some chassis changes this week & will try to dodge raindrops this Saturday & see if we can get some traction... & then maybe I'll think about playing with jetting/timing. I was happy with MPH considering the weather for first day out. Will have new Altronics weather station this weekend as well to monitor the air better.
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Re: Build me a 9.90 small block
[Re: RyanJ]
#429275
08/06/09 07:22 PM
08/06/09 07:22 PM
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Joined: Nov 2004
Posts: 4,330 Lynchburg, VA
Leon441
master
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master
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
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The reason I say it would be easy is the car only weighs 3,000 lbs.
I ran 9.90's in 1997 with a stock block 360 bored .100 over, stock crank. Good compression and good rods. The cam was a .628 roller. The heads were some old W2's that Roy Johnson used to run in the 70's. In todays standards there was absolutely nothing special about this engine. I had a horrible tuneup for a 175HP shot of Nitrous and a torque converter that was absolute junk, todays standards. The car at that time weighed 3,450 w/ driver.
A set of closed chamber Indy 360-2 heads. A 4" stroker crank. R blocks are great but there is a cost $$$ and weight. If you got the money the 48 degree lifter is awesome compared to 59. There is no reason with the heads available these days mail order and the ease of making over 400 inches that you can't make 650 HP and easily run 9.90 with a 3,000 lb car. This would not be a high RPM engine nor would it have to be a race gas engine. I will not go so far as to say easy on pump gas but with all the others who are familiar with pump gas combos it is something that can be done without a great deal of difficulty.
Leon
Career best 8.02 @ 169 at 3050# and 10" tires small block power.
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Re: Build me a 9.90 small block
[Re: HotRodDave]
#429277
08/06/09 07:46 PM
08/06/09 07:46 PM
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Joined: Jan 2003
Posts: 945 La Vernia, Texas
Pat7272
super stock
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super stock
Joined: Jan 2003
Posts: 945
La Vernia, Texas
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Quote:
OK so must be about 4.5 inch stroke and 4.25 bore, gonna be the biggest mopar small block ever probably
hehe, thats what I was thinking! 511" SBM baby!
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Re: Build me a 9.90 small block
[Re: Ron Silva]
#429279
08/07/09 04:03 PM
08/07/09 04:03 PM
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Joined: Feb 2003
Posts: 3,998 GO BUCKS !!!!!!!
340RICK
master
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master
Joined: Feb 2003
Posts: 3,998
GO BUCKS !!!!!!!
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I have bragged on here about my old 416" W5 motor that Ryan helped me with. It was a basic as it could be custom nothing other than Ryan porting the heads and Indy Intake manifold. It was callies 4" crank Scat off shelf chivy rods shelf diamond flat tops. Compression was 11 to 1 ran it on 94 Octane gas. Shadydell W5's with Indy intake 1050 Holley Et streets on cal tracs thru exhaust went 9.96 at 136MPH at 3250lbs......... So tell your buddy to put that in his pipe and ....... It can easily be done with a 4" crank and some Big Indys or W5's nothing to fancy needed
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Re: Build me a 9.90 small block
[Re: S/ST 3040]
#429284
08/07/09 04:32 PM
08/07/09 04:32 PM
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Joined: Feb 2007
Posts: 2,578 sweden
1Fast340
master
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master
Joined: Feb 2007
Posts: 2,578
sweden
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Quote:
IIf I ever get over this stock stroke, factory head rollercoaster I'll build something bigger with my W-5s.
¨
would that be before or after you try a blower with stock stroke and factory heads?
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Re: Build me a 9.90 small block
[Re: Ron Silva]
#429285
08/07/09 04:42 PM
08/07/09 04:42 PM
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Joined: Jan 2003
Posts: 465 Oconomowoc, WI.
Cudahlr
OP
mopar
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OP
mopar
Joined: Jan 2003
Posts: 465
Oconomowoc, WI.
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Thanks for all the replies, its always good to get every ones opinions on the do's and dont's of building an engine, this thread has given me lots to think about. By the way has anyone tried that 426 kit that Hughes sells? Im just curios Thanks
1968 Barracuda 360/727 11.20 @ 121 mph 421 rwhp 1985 Harley Sportster Bobber 2006 Ram 2500 sport - The Cudahlr
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Re: Build me a 9.90 small block
[Re: S/ST 3040]
#429286
08/07/09 04:55 PM
08/07/09 04:55 PM
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Joined: Feb 2003
Posts: 3,998 GO BUCKS !!!!!!!
340RICK
master
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master
Joined: Feb 2003
Posts: 3,998
GO BUCKS !!!!!!!
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Here is what I can remember off the top of my head R block 4.070 bore Callies 4" crank Diamond flat tops 11 to 1 Scat 6.125 chivy rods CNC Shadydell W5's stainless valves Norris rockers Big Roller Cam card is in Ryans safe Indy intake that Ryan converted for 4500 flange Out of the box #8082 1050 doinator TTi W5 headers and X pipe with 3" bullets 727 CRT tranny 8"Ptc 5500 4:56 gear dana 60 Cal tracs and all stock front suspension car 3250lbs 30x12.50 ET streets This thing ran on 94 octane and I drove it on the street alot. I spun a rod bearing from not having big enuff fittings and hoses on a remote oil filter and not enuff oil in the pan When I blew it up I sold the top end all in the quest for more speed
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