Single plane conv$$$
Thread Starter
Joined: Mar 2007
Posts: 488
Likes: 1
From: Hampton Roads VA
Single plane conv$$$ Just wondering what the average price was to convert over to single plain conv.. With fuel rails elbow intake etc.... I will already have the set of injectors
I've heard that this is a very good manifold:
http://store.summitracing.com/partde...5&autoview=sku
You'll need to add a throttle body and elbow and distributor block off plate. You'll also need to have the head bolt holes changed although I think it's a better idea to have SBC style bolt holes added to your heads.
http://store.summitracing.com/partde...5&autoview=sku
You'll need to add a throttle body and elbow and distributor block off plate. You'll also need to have the head bolt holes changed although I think it's a better idea to have SBC style bolt holes added to your heads.
1500 is a good estimate...... you're looking at about 400 for the manifold..... elbow and throttle body another 400 ish.... maybe more..... then the conversion for the bolt holes is gonna run anywhere from 500-800 depending on porting options.....
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Pricing below is to duplicate my setup.
Edelbrock Vic-E $329.95
Fuel Rails $81.95
Regulator $163.95
Fittings and hose (around) $200
Elbow $300
Nitrous Spray Bars $250
Machine Work ???? would need to contact a machine shop to estimate expense on converting heads to SBC bolt pattern. I would convert the head instead of the intake. Should be cheaper and would give you the ability of changing manifolds at any time. You could then use any LT1 or SBC manifold.
That was my goal..... solid roller cam and a valvetrain that could handle 8000RPM wasn't any good if the manifold would only provide power to 6500.... So I went with the single plane Victor E....
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I would watch closely for RESULTS. IMO this is one of those mods everyone is ready to jump onboard with and sofar there is little evidence it is worthwhile especially on more typical setups. Seems to me at least one guy in the last year who posts here saud he wishes he had not spent the coin.
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I've heard that this is a very good manifold:
http://store.summitracing.com/partde...5&autoview=sku
You'll need to add a throttle body and elbow and distributor block off plate. You'll also need to have the head bolt holes changed although I think it's a better idea to have SBC style bolt holes added to your heads.
http://store.summitracing.com/partde...5&autoview=sku
You'll need to add a throttle body and elbow and distributor block off plate. You'll also need to have the head bolt holes changed although I think it's a better idea to have SBC style bolt holes added to your heads.
I would watch closely for RESULTS. IMO this is one of those mods everyone is ready to jump onboard with and sofar there is little evidence it is worthwhile especially on more typical setups. Seems to me at least one guy in the last year who posts here saud he wishes he had not spent the coin.
My crystal ball shows me this idea snowballing till guys are wanting to try it on stock motors and I just thought it good to throw out there.
I mean look at some of the cars making big power on lightly worked stock intakes yet guys think they need to drop this extra $1200+ and make 50rwhp less so we are already heading there.
Basically I think the stock intake is much better than given credit for but certainly not perfect, meaning lots of other things to worry about instead of this.
I mean look at some of the cars making big power on lightly worked stock intakes yet guys think they need to drop this extra $1200+ and make 50rwhp less so we are already heading there.
Basically I think the stock intake is much better than given credit for but certainly not perfect, meaning lots of other things to worry about instead of this.
Launching!
Joined: Nov 2007
Posts: 271
Likes: 0
From: Moore Oklahoma
WD
ok i may be retarded and ill admit it lol but wouldnt switching to tha single plain intake help to "level out tha cylinders" like in a supercharged application?? because i think i read that the LT1/4 intakes cause problems on forced induction motors, one guy said he was having to run different sized injectors on different cylinders.....?
IIRC
Super Vic #2925 $220
Elbow $225
Throttlebody(Monoblade) $510
Efi conversion WITH fuel rails $300
I didnt have to have the intake bolt holes altered, nor did I have the coolant crossovers removed, I used the rear ones for my coolant bypass.
The engine HAS to have to correct cam in it to take advantage of the long runner in the carb conversion.
DO I think my car would make the same power with a stock intake on it..uhhh no.
600 hp on pumpgas with 383 inches and a 23* head is hard to do. My combo is NOT maxed out. With a cam change, race fuel, uncapped exhaust and re-tune I think it would make 650+ hp, or 520 RWHP.
I think the conversion is worth it, but you have to have the right stuff UNDER the intake to make it worthwhile.
You cant take a 383 with a LE2 package and slap on a super vic and expect alot.
David
Super Vic #2925 $220
Elbow $225
Throttlebody(Monoblade) $510
Efi conversion WITH fuel rails $300
I didnt have to have the intake bolt holes altered, nor did I have the coolant crossovers removed, I used the rear ones for my coolant bypass.
The engine HAS to have to correct cam in it to take advantage of the long runner in the carb conversion.
DO I think my car would make the same power with a stock intake on it..uhhh no.
600 hp on pumpgas with 383 inches and a 23* head is hard to do. My combo is NOT maxed out. With a cam change, race fuel, uncapped exhaust and re-tune I think it would make 650+ hp, or 520 RWHP.
I think the conversion is worth it, but you have to have the right stuff UNDER the intake to make it worthwhile.
You cant take a 383 with a LE2 package and slap on a super vic and expect alot.
David
One other thing I should point out that I noticed since I did the conversion my plugs read the same on all 8 as opposed to the LT1 intake where some read lean and some were rich and so on.I think it is a much more even airflow. prolly way more safe for N2O as well 
TECH Addict
Joined: Jul 2005
Posts: 2,153
Likes: 3
... to echo what 96caprice said, there's a guy that did the swap on a stout 12.5/1 396 with AFR 220 heads. He was running a big solid roller in the 25x range and still only gained ~15 rwhp. He actually lost power up to 5200 rpm and didn't make any improvements until beyond 6200. He also said he wouldn't do it again if he started over.
Mike
Mike
Think its the way to go if you plan on running NOS...Im collecting parts for the conversion now. Ray is going to machine in a spray bar for me also, nice even distribution.
If you can retain the twin LTx style TB, sensors, etc. Makes it simpler, you can take your time and buy parts as you find deals...will also help cut costs.
Not sure about the full story on the 396 test case, bet if he sprayed it before and after the conversion he would have prolly seen his big increase after the conversion on the sauce, would be my guess.
