Thread: SBC Cylinder Head Info Request

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Thanks for the replies-exactly what I was looking for.
I bought the entire shooting match; 350 block (# 3970010), 327 heads, starter, alternator, THM 350 tranny, a Quadra Jet and a Holley 600 cfm, old Weiman single plane aluminum intake, along with an engine stand for $300 CDN- I was after the block and everything else was a bonus

I live in the Toronto area and it's really surprising how little there is available here-the next cheapest online 350 block (block only, no crank, rods or pistons) is $200.

This is my first foray into non-european, carb'd engine building/modifying and I'm looking forward to it. I bought an old '84 Z28 with a 305 (129,000 miles-starts, runs and moves), THM700 R4 and 3.73 rear end for $1000 last week. The driver's side floor pan is shot and it will also need some shoring up on the frame rails (yes, I know it's unibody) Everything else looks good though-the body is in great shape, as is all the weather stripping and glass. The interior is good with the exception of the carpeting-I've already torn it out and cut out the parts of the floor pans that need replacing. It's deemed a classic car in Ontario, so not emissions test necessary...

I have in mind a engine that will produce 300+hp, for which I've budgeted $2K CDN ( about $1400 US. I'm not adverse to buying new parts-I'll have to get a new crank, rods, pistons, bearings, cam, lifters, rods, maybe valve springs, rocker arms, intake and maybe a carb. I'll try and source as much quality used stuff as I can. There's an ad online in Buffalo for rebuilt , modernized (I'm assuming hardened valve seats?)with 1.94/150 valves for $300, so maybe I'll take a look at them... Meanwhile, I'll be sending the block I have to be cleaned up, rebored and squared.

Thanks for the advice, I need it

This tutorial concerning production L31 heads may interest you....
http://www.crankshaftcoalition.com/w..._cylinder_head
They are the best flowing iron production heads that Chevy ever produced.

In the final tally, I think you'll find that building a motor will cost about US$10.00 per horsepower.

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Great info. Thanks very much.

Originally Posted by techinspector1

......In the final tally, I think you'll find that building a motor will cost about US$10.00 per horsepower.

Depending on how crazy you get, I'd revise Tech's cost to read something like ".....about $10.00 per horsepower for a naturally aspirated, carb'd engine; pushing $13.00 per horsepower or more for an injected engine; and pushing $15.00 to $18.00 per horsepower if you get blower fever. Just my $0.02, hope you can prove it wrong.