400 sbc build???
#4
Senior Member
RACING JUNKIE
Join Date: May 2006
Posts: 2,044
Re: 400 sbc build???
Originally Posted by justin45
im bout to start on the rebuild of my 406 sbc anybody have any tips for makin good power on one??? its gona be a street motor in a 86 gmc swb
Is it a weekend warrior for bracket racing, a pulling truck, mud truck etc?
Are you wanting more torque or just upper RPM horsepower or both?
In general a good set of flat tops, some good breathing heads, a 280 magnum cam, a performer RPM air gap and holly 750dp would wake it up nicely.
#5
Senior Member
RACING JUNKIE
Join Date: Jan 2006
Location: La.
Posts: 2,890
It's a budget thing, it depends what you want to spend or can afford too spend, Dart steel heads are about $700.00 good heads for the street or racing (you will have to drill the steam holes in the heads if you do a lot of street driving) decent cam, intake, carb and headers and you're looking at around 450 HP, all for less than $2,000.00 in parts.
JMO
Zip.
JMO
Zip.
#7
Senior Member
SENIOR BUILDER
Thread Starter
Join Date: Apr 2009
Location: odessa texas
Posts: 103
well its not gona be raced much and i want to have bout 10:1 compression so i can run pump but i was thinking bout getting 5.7 rods wth flat tops and 2.05 valves wth a big roller, im planning on using the stock heads and crank but im thinking but offgrinding it to stroke it and im not to sure what im gonna forsure do to it yet but i ana build it on a low budget
#8
Senior Member
DYNO OPERATOR
Join Date: Apr 2008
Posts: 496
Originally Posted by justin45
well its not gona be raced much and i want to have bout 10:1 compression so i can run pump but i was thinking bout getting 5.7 rods wth flat tops and 2.05 valves wth a big roller, im planning on using the stock heads and crank but im thinking but offgrinding it to stroke it and im not to sure what im gonna forsure do to it yet but i ana build it on a low budget
240/246@50 507/510 lift,carb is aed 750cfm,dont know manufacture of roller rocker arms but they are purple and 1.5 ratio.push rods are comp cam.lifters are comp cam.also have a open plenium intake.this combo with a set of proline heads took my pump gas 3500lb monte carlo to a best time of 11.60 in the 1/4 mile on m/t drag radials.you can have it all for $400.00.if you need pic's let me know and i can e-mail some to you.and yes i did drive the car on the street.
#10
Originally Posted by JEFF69Z28
Originally Posted by justin45
well its not gona be raced much and i want to have bout 10:1 compression so i can run pump but i was thinking bout getting 5.7 rods wth flat tops and 2.05 valves wth a big roller, im planning on using the stock heads and crank but im thinking but offgrinding it to stroke it and im not to sure what im gonna forsure do to it yet but i ana build it on a low budget
240/246@50 507/510 lift,carb is aed 750cfm,dont know manufacture of roller rocker arms but they are purple and 1.5 ratio.push rods are comp cam.lifters are comp cam.also have a open plenium intake.this combo with a set of proline heads took my pump gas 3500lb monte carlo to a best time of 11.60 in the 1/4 mile on m/t drag radials.you can have it all for $400.00.if you need pic's let me know and i can e-mail some to you.and yes i did drive the car on the street.