Re: 340 smallblock screamer
[Re: Hot 340]
#1511518
10/02/13 05:53 PM
10/02/13 05:53 PM
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Joined: Dec 2009
Posts: 20,662 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,662
in a cattle trailer down by th...
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I ran my 360 with pistons .011 out of the hole with the standard .039 FelPro and small chamber W5's without issues for 15 years buzzing it to 7500. I'm not saying you should do that, it was just the way mine ended up with the parts I had and the very limited 4 day time schedule to put it together while still holding down a 12 hour a day job. Piston to valve clearance was very tight too at .076/.083, you can believe I was puckering the first time I winged it in the water box.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: 340 smallblock screamer
[Re: Guitar Jones]
#1511519
10/02/13 05:59 PM
10/02/13 05:59 PM
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Joined: Dec 2006
Posts: 3,396 Pa
Hot 340
master
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master
Joined: Dec 2006
Posts: 3,396
Pa
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Quote:
I ran my 360 with pistons .011 out of the hole with the standard .039 FelPro and small chamber W5's without issues for 15 years buzzing it to 7500. I'm not saying you should do that, it was just the way mine ended up with the parts I had and the very limited 4 day time schedule to put it together while still holding down a 12 hour a day job. Piston to valve clearance was very tight too at .076/.083, you can believe I was puckering the first time I winged it in the water box.
I woulda been puckering too, man that is tight!
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Re: 340 smallblock screamer
[Re: watermans340]
#1511521
10/02/13 06:33 PM
10/02/13 06:33 PM
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Joined: Feb 2009
Posts: 1,532 off the grid
340B5
pro stock
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pro stock
Joined: Feb 2009
Posts: 1,532
off the grid
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That cam is more suited to a stroker. I tried one in my 340 installed per factory specs and ended up replacing it w/a Racer Brown that netted almost .4 in ET. Thinking back, if I would have advanced it 3 deg, it would have been close to the Racer Brown open/closing specs.
Yeah, it's got a smallblock.
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Re: 340 smallblock screamer
[Re: watermans340]
#1511527
10/04/13 12:07 AM
10/04/13 12:07 AM
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Joined: Feb 2004
Posts: 6,257 acworth / N. georgia - south e...
cheapstreetdustr
master
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master
Joined: Feb 2004
Posts: 6,257
acworth / N. georgia - south e...
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peak numbers are only a portion of it.. i would graph the flow and have a cam built the leverages your flow based on what you want to do with the car.. if the port is dead after .500" or goes turbulent then it would be unnecessary to go to .600" thats an over simplification..but you get the idea
ill also say...lets say hypothetically .522" valve lift is a sweet spot in the port...than i would go just a lil past that valve lift so the port sees the sweet spot twice.once on the valves way up then again on the valves way down.. again this is over simplification ..but gives you some cause to do a little more home work. some known combos have already sorted these things out. but the/your hardware becomes the fixed items in the equation..the correct cam will put them to your advantage..fwiw
365" Iron J heads,,3480lbs best 1.39 60ft on SS springs.10.54,124 mph ...6.67 1/8th et.average 60fts 1.46 w/ small cam &.063 no2 pill tagged & insured [image][/image]
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Re: 340 smallblock screamer
[Re: Triple Threat]
#1511530
10/04/13 07:03 PM
10/04/13 07:03 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:
More converter
and more cam,and prefereably more compression.
i think camquest is on some serious ilegal substanses with there hp predictions..
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Re: 340 smallblock screamer
[Re: 1Fast340]
#1511531
10/05/13 01:25 AM
10/05/13 01:25 AM
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Joined: Jan 2003
Posts: 1,481 Outside
thedriver
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,481
Outside
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That motor will make 320 to the tire.
1973 challenger Dana. 4 speed. Low deck.
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Re: 340 smallblock screamer
[Re: 1Fast340]
#1511532
10/05/13 02:18 AM
10/05/13 02:18 AM
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Joined: Feb 2004
Posts: 4,501 Gainesville,FL
goldmember
master
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master
Joined: Feb 2004
Posts: 4,501
Gainesville,FL
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Quote:
Quote:
More converter
and more cam,and prefereably more compression.
i think camquest is on some serious ilegal substanses with there hp predictions..
Put a nice solid lifter cam in it and you have at least a chance. Camquest is garbage.
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Re: 340 smallblock screamer
[Re: thedriver]
#1511533
10/05/13 02:22 AM
10/05/13 02:22 AM
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Joined: Feb 2004
Posts: 4,501 Gainesville,FL
goldmember
master
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master
Joined: Feb 2004
Posts: 4,501
Gainesville,FL
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Quote:
That motor will make 320 to the tire.
It very well may but I'd think that would be a gross under achiever. why do all that for a 400hp build?
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