New to BBC

[1971ls1longbed]

hey all im new to big block chevys. ive done sbc,lt1,ls1 but this is a whole new animal to me and i would like some help. i want to build a 427 or 454 to power my 71 c10. i would like to see 500rwhp and im going to run this in my daily driver. im using a 6spd trans. i know u guys have some tricks up your sleeves so any advice would help

[djracer]

A good set of heads will be a critical part of the equation. I would go 454 as they are allot easier to come by. If you really want an awesome motor put a 4.25 inch stroke crank in a 454 block and you will be amazed.

[1971ls1longbed]

not to sound ignorant but what would putting a 4.25 inch stroke crank in a 454 do and what type of heads should i look for

[djracer]

Adding a 1/4 inch of stroke adds several cubic inches. A 30 over is a 489 a 60 over is a 496 and so on.

I have had good luck with Brodix but there are several good heads out there. If you want to race an aluminum head would help allot with weight transfer.

[1971ls1longbed]

wow ok cool anything else. like i said im new to big block chevy so everything is new to me. what is the best cam setup for the street ex: hyd roller, mechanical, flat tappet, solid

[ripdog28]

we need to know your budget then go from there. it adds up fast. imo buy one from vortecproengines.com if you only want to spend $5-6000. he is the best out there for the price. check out his reviews on chevelles.com.

[djracer]

Hyd roller would be the best but not cheap.

[1971ls1longbed]

my budget is 4-5k and i know its not alot but im sure with the help u guys have given me i can put something together that will have me grinning ear to ear

[ripdog28]

With that budget i guarantee you can not beat this deal. Vortechpro... The 468 at 9.1 with 570hp or 620hp for $5k

[1971ls1longbed]

ripdog i just read ur build thread and i learned a lot and ur truck is absolutely wild. thanks for the link to vortec. that is exactly what im looking for

[ripdog28]

Thanks for checking it out. Call up mark jones and he will plan it out with you. If I found him before building my engine I would have his 650hp 496.
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[gearys 5600]

I had a 496 that made 830hp and 595 rw hp, in my 68 camaro. I could not get ANY 5 or 6 speed trans to hold up behind it. Finally went to a built manual valve body 350 turbo and it did fine.

At your estimated 500 rwhp, You would probably be fine on street tires with the 6-speed, I think if you put slicks on it and took it to the track you may have problems. Good luck sounds fun.

[1971ls1longbed]

yea i think for your app u need a tick performance cryo treated trans. Ive talked to D&D transmissions and they have a kit that will allow the trans to withstand 700ft-lbs. so if i grenade that then ill get a tick trans

[stich626]

30 over 4 bolt forgeds crank/rods(7/16th arp bolts) if not h beam or i beam.
strocker crank (489) good forged pistons (srp)
and dart pro 1 heads and a nice hdy roller cam..
( went solid roller) single plane intake. and a 850 d/p
500rwhp is alot, what you doing to the truck to make it hook..

[prostreetC-10]

For roughly 550 at the crank, gunna need heads as stated above. Get ya some AFR's....especially if you are going to stroke it. Challenge is going to be either hitting the HP target or the budget. Might be hard to do both.

[1971ls1longbed]

Originally Posted by stich626

30 over 4 bolt forgeds crank/rods(7/16th arp bolts) if not h beam or i beam.
strocker crank (489) good forged pistons (srp)
and dart pro 1 heads and a nice hdy roller cam..
( went solid roller) single plane intake. and a 850 d/p
500rwhp is alot, what you doing to the truck to make it hook..

completely custom setup from no limit

[gearys 5600]

My 496 made more horsepower with brodix 2xtra cnc'd, over the pro 1's. My last bbc I built had cfe bmf cnc'd 385's, 582 c.i made 1115 hp single carb, no power adder. I really think the cfe heads are hard to beat for bbc horsepower.

[stich626]

Originally Posted by gearys 5600

My 496 made more horsepower with brodix 2xtra cnc'd, over the pro 1's. My last bbc I built had cfe bmf cnc'd 385's, 582 c.i made 1115 hp single carb, no power adder. I really think the cfe heads are hard to beat for bbc horsepower.

maybe but I payed 1100.oo(pair) for the 345 port heads

[1971ls1longbed]

Originally Posted by gearys 5600

My 496 made more horsepower with brodix 2xtra cnc'd, over the pro 1's. My last bbc I built had cfe bmf cnc'd 385's, 582 c.i made 1115 hp single carb, no power adder. I really think the cfe heads are hard to beat for bbc horsepower.

Not to sound dumb but what is "cfe bmf"
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[prostreetC-10]

Carl Foltz....BMF is their "budget" line of heads and they will run you over $3,000 for the pair. Overkill for what you are trying to build and attain.

http://www.cferacing.com/

[1971ls1longbed]

Originally Posted by stich626

maybe but I payed 1100.oo(pair) for the 345 port heads

Where did u get them from
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[gearys 5600]

Originally Posted by stich626

maybe but I payed 1100.oo(pair) for the 345 port heads

$1100 bare ?? I paid $1800 for the brodix 2xtra cnc,d complete, ready to bolt on, Not having to spend $$ for port work is worth quite a bit.

[prostreetC-10]

lol....1100 a PAIR not BARE!!

[1971ls1longbed]

Originally Posted by prostreetC-10

lol....1100 a PAIR not BARE!!

wow thats a great price and where did u get them from

[gearys 5600]

Good luck on that..