Budget 351w
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5th Gear
Joined: Aug 2024
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Budget 351w
I haven’t bought a motor yet but i was planning to get a lower mileage 351, put a trick flow stage 1 came, sve aluminum heads (cnc ported), edlebrock rpm air flow intake, and some headers, 600 cfm holley carb. Does anyone know around what numbers id be sitting at?
Laughing Gas
Joined: Jul 2009
Posts: 1,010
Likes: 405
From: NE Ohio
You've gotta consider what the primary usage of the vehicle is first! Do you want to tow with it (lower RPM power), or go fast? Fuel type? Is Emissions-compliance a requirement?
I built an emissions-sniffer-test-legal 393W (stroked 351W) back in 2006 for my '89 Crown Vic. Mild cam, decent pocket-ported aftermarket iron heads, 9.4:1 compression, 670 Holley Street Avenger carb, shorty Mustnag headers, Mustnag catted H-pipe, full duals. Backing this was a 2200 converter in the AOD, but I had the trans converted to Wide-ratio gearing using 4R70W internals. I also upped the rear gears up to the 'factory HD tow pkg' gearing of 3L55s. This was my daily-driver for a number of years - and also used as a 'secondary tow vehicle' to tow a 2700-pound race car on a 1400-pound open trailer when our primary tow vehicle (wife driving the previous '97 F250HD) was already being used to tow another car... In this form, it ran ~ 14.30s - so real-world HP was estimated at ~345.
I built an emissions-sniffer-test-legal 393W (stroked 351W) back in 2006 for my '89 Crown Vic. Mild cam, decent pocket-ported aftermarket iron heads, 9.4:1 compression, 670 Holley Street Avenger carb, shorty Mustnag headers, Mustnag catted H-pipe, full duals. Backing this was a 2200 converter in the AOD, but I had the trans converted to Wide-ratio gearing using 4R70W internals. I also upped the rear gears up to the 'factory HD tow pkg' gearing of 3L55s. This was my daily-driver for a number of years - and also used as a 'secondary tow vehicle' to tow a 2700-pound race car on a 1400-pound open trailer when our primary tow vehicle (wife driving the previous '97 F250HD) was already being used to tow another car... In this form, it ran ~ 14.30s - so real-world HP was estimated at ~345.
FTE Chapter Leader
Joined: May 2006
Posts: 12,338
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From: Central Mississippi
I love threads that say "budget" but rarely mention actual $$$ limits/funds/availability.
I hear carb & don't hear transmission type.
Cheap **** I am, anything with aluminum heads that don't cost pennies on the dollar isn't low cost/ budget territory.
Much more info needed
Just sayin'.
I hear carb & don't hear transmission type.
Cheap **** I am, anything with aluminum heads that don't cost pennies on the dollar isn't low cost/ budget territory.
Much more info needed
Just sayin'.
Hotshot
Joined: Jun 2015
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Hotshot
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I haven’t bought a motor yet but i was planning to get a lower mileage 351, put a trick flow stage 1 came, sve aluminum heads (cnc ported), edlebrock rpm air flow intake, and some headers, 600 cfm holley carb. Does anyone know around what numbers id be sitting at?
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Logistics Pro
Joined: Aug 2010
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From: Chillicothe
never said what his goals were or what he would be using it for.
Open ended question open ended answer.
Open ended question open ended answer.
Laughing Gas
Joined: Jul 2009
Posts: 1,010
Likes: 405
From: NE Ohio
The reason I put forth my 393W build was to show that budget 393s don't use any special parts. 393Ws use stock type 302 pistons, and stock Windsor rods. The only part that is any different is the crank - and if your stock crank needs to be turned, a new cast 3.85" stroke crank isn't all that much more expensive - mine was actually cheaper because it was a .010/.010" under 'blem' that I got for less than than it would cost having my stock crank turned! You're already buying new pistons/rings/bearings, so those prices are a wash. The bigger inches and longer stroke will give you more torque, all things being equal.
Back when I built my 393, most stroker kits were either 8.0 for supercharging, or over 10:1. I wanted something to run on 87 octane for my daily driver, so I perused through every piston manufacturer and came upon a '302 blower piston' from Keith Black with a 22cc dish. Combine that with 64cc heads and that yields ~ 9.3 to 9.4:1. This is the 'kit' I came up with - and now it is a popular offering at cnc-motorsports https://cnc-motorsports.com/catalog/...category/1007/
Back when I built my 393, most stroker kits were either 8.0 for supercharging, or over 10:1. I wanted something to run on 87 octane for my daily driver, so I perused through every piston manufacturer and came upon a '302 blower piston' from Keith Black with a 22cc dish. Combine that with 64cc heads and that yields ~ 9.3 to 9.4:1. This is the 'kit' I came up with - and now it is a popular offering at cnc-motorsports https://cnc-motorsports.com/catalog/...category/1007/
Lead Driver
Joined: Sep 2002
Posts: 9,539
Likes: 2,030
From: North Texas
Ah yes, forgot the 302 pistons are what...1.61 comp height and you use 5.955" 351 rods. Duh. Makes sense why those are more common and/or less expensive.
Now recall why I had factory factory Forged 302 slugs and the roller 351 block before the flood.
Now recall why I had factory factory Forged 302 slugs and the roller 351 block before the flood.
Laughing Gas
Joined: Jul 2009
Posts: 1,010
Likes: 405
From: NE Ohio
Just FYI, here's a site with many SBF heads tested/flowed. https://www.carbdford.com/tech/flowdata.htm
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