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79 K5 Prerunner "Lucy"

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It's sounds about like 325. I think you still need some more cam... Bump your compression some...forget about boost. n/a screamer baby.
 
I have a 363" small block for sale...

270° duration, 6.125 rod, 9.5:1. ~450 hp without the beer or stickers...
 
Right now I have quite literally no money. These parts aside the cam and valve springs already exist in my garage, this is more of a stop gap until I can either blow this up or swap and ls style engine into the truck.. If it doesn't blow I'll slap turbos on it.. Two of them.. If not I'll build a screamer of an ls engine instead.. Thinking 7-8k 4.8 or 5.3.. That's a long way away.. Back to reality..
 
Sorry and to address your question directly, no roller was not a consideration because of budget and if I can get some cash saved up is rather go summit aluminum heads vs vortec..
 
I only asked about the vortecs because I figured money was tight. I wouldn't use them if I had the choice not to. But if you could find an uncracked set at a yard for 80 bucks.... But good luck with that, they are known to crack around the exhaust seat.... By the time you fix them.....well you know where I am going....aluminum aftermarket...
 
Around here the Vortec 350's are plentiful and stupid cheap in the wrecking yards. At $280 for a complete engine it's a total steal just for the roller cammed short block. If the vortec heads are uncracked it'd still be a good budget powerhouse.
 
Dang.. That's like one step larger than what I was planning.. My issue is my converter which I just picked up is only 2200 stall.. Not that it is a huge deal but what would that run like vs my comp cam I listed? The lunati looks like 4-5 degrees more duration than the comp..
 
And health and I have been chatting about this for a few weeks and kind of settled on the comp cam because I have low compression and crappy heads, by all means I am not against bigger cams.. Don't bother me one bit.

From my research my crank and rods and Pistons should handle plenty of rpm so from the looks of it that cam is well within the range.
I'm mostly concerned with the cylinder heads.. I've never used crappy heads with a lot of duration.. So I have no clue what it would do.. Besides make a bunch of noise. School me!
 
tRustyK5 said:
Around here the Vortec 350's are plentiful and stupid cheap in the wrecking yards. At $280 for a complete engine it's a total steal just for the roller cammed short block. If the vortec heads are uncracked it'd still be a good budget powerhouse.
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I'd have to find out what they are on my side of the world.. I don't know off hands.
 
the two issues I know of on using a Vortec 350 are...special intake required. Not as cheap as regular sbc intakes so it's a budget hit for sure. Best flowing factory sbc heads...but max lift they'll deal with is only about .480". They can be machined to deal with more...but again more $$.

I'm really considering one for my 57 Pontiac as a budget friendly option.
 
This is coming together nice! Looks great back on all fours.

beags86 said:
Everyone on here undercams. Except John and Heath.
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I'd say I resent that, but, I haven't leaked specs on mine yet. Heath is involved, so that should tell you something...
 
I have used a big cam with shitty heads before. The way i see it; head flow will limit you but flow numbers don't mean shit without the valves opening enough to use that flow.....

I would worry about your compression more then the heads....
But if turbo's are part of the plan I get why you want to keep it down.

Really a thousand ways to skin a cat.... Build a small Chevy.... The problem here is the stop gap thought process..
 
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