engine building ???

[mudslayer2008]

What up grades can you do or what is the maxium hp you can make and still be able to run pump gas?

Heads, cam (how big of lift), crank     its for a 350 sbc with a one peice rear main

any help would be great         thanks

[Squirell]

i believe you get into race gas at 10 to 1 so stay below that. and get a set of good heads Terry rosebush sells dart heads for 399 a pair for bare casting any one they make. cast iron ones anyways.

[Ranger Dave]

10    or  10.5  to 1    before  you need  racing fuel. 

spend you money on your heads  that where the  power at.

[mudslayer2008]

ok,  what heads should I get I donot have alot of money right now but I may sell my 400 sbc to do some upgrades I my 350

[solid 12]

vortec heads are a good cheap upgrade! they say those will give u apprx. 40 hp from stock

[Disturban]

I run AFR 210's on my Transam...not cheap though $1500 for the pair but if you can find some good used ones for cheap grab them up they flow great.

[Kodiak450r]

look for TPI camaro heads. they are typically cheap but give good gains if you have someone port them. i'm running TPI 305 heads on my 355 and with a mild roller cam i'm above 325 HP and it runs on 87 octane with 9.5:1 compression ratio.

[Norm Henderson]

change your intake out to a performer intake, you can get whole kits from edelbrock...intake, cam , lifters, ect..... and i wouldnt go to radical of a lift, and a 650 carb would be plenty

[mudslayer2008]

right now I have a stock gm crate motor with a performer intake, up graded goodies and coil in distribator  and a carter 650cfm  carbonator.

[91 k1500]

ok,  what heads should I get I donot have alot of money right now but I may sell my 400 sbc to do some upgrades I my 350

whats done to the 400 and what do ya want for it?

[mudslayer2008]

I told it was rebuilt four years ago and only has 30,000 onit but thats about all know. it did run when I pulled it from the truck in Oct. 08.

Not sure  if I'm going to sell it or not don't even know what it's worth.

When it was running didn't smoke or knock at all.

[Bowtie972]

Vortec heads work well and are fairly cheap and available, if you can afford it Darts are nice too,  if it were mine I'd stick with Cast Iron instead of Aluminum if its a bogger, Cast will hold up better to the heat.

[mr. goodwrench]

I would put some heads on the 400, as they say no replacement for displacement.

[TOOLMANN72]

GOTTA AGREE WITH MR. GOODWRENCH PUT A CAM , HEADS AND INTAKE ON THE 400, THE CUBES ARE GONNA GET YA THE POWER. OR BETTER YET SELL THEM BOTH AND GET YOURSELF A BIG BLOCK.

[mudslayer2008]

OR BETTER YET SELL THEM BOTH AND GET YOURSELF A BIG BLOCK

       that's an Idea

[mudslayer2008]

Just got the new issue of " hotrod " Sonny' racing built a 802 ci making 1,417 naturally aspirated hp at 7100 rpm and 1,140 ft lbs of torque at 5800 rpm running on 89 octane pump gas.

    I want this engine  but dought will ever afford.

[badbowtie383]

it dont do any good to put a topend to gether to run 8000 if you dont put the money in the lower end to hold it but you cant tell any one that the dont seem to care and everone seams to get vortecs mixed up with juck tbi head they are not the same just cause they have center bolt valve cover dont mean that they are vortecs and if you whant a good stock head look for a set of fast burn heads they are the you will have a 100 more ponies they are the one with the four corner bolts that hold the intake on  none in the center you can have it decked for compresion you dont have to run race gas untill high 11to 1people  for get pump gas comes in three grades