Max Horse Power for Ford 302 block

[needforspeed66gt]

Good point about the superior sealing of LS engines, and I agree stock for stock LS engines are more efficient.
However, the topic is blocks and I have yet to find any pump gas builds that show LS engines having any
advantage over SBF or SBC when topped by good aftermarket intake, cam and heads.
By the way, I'm comparing all three with carb and distributors.

If all you care about is the block, then the answer is that a stock LS block will handle much more power than a stock SBF or SBC. Once you start moving away from stock components and care less about money spent per HP, then the gap is less, but the Gen III/IV stuff will still in my experience get better MPG and have better street manners at similar HP levels. If you go away from DIS and EFI then I have less to say, I much prefer EFI and wouldn't consider going backwards in technology by putting a carb on an LS motor.

[TTXPC]

Back to the 302 block, I had an early (1968) turbocharged one making 650 moroso slide rule HP, wore it out, did thousands of street k's detonated the snot out of it, enough to break pistons, pushed a few head gaskets, torched a cylinder head (crossfire issue)
Only turned it 7k, only did 50 passes or so, quite a few times on the dyno. Must have been a good one, only block mod was main/head studs

[CNC BLOCKS]

Back to the 302 block, I had an early (1968) turbocharged one making 650 moroso slide rule HP, wore it out, did thousands of street k's detonated the snot out of it, enough to break pistons, pushed a few head gaskets, torched a cylinder head (crossfire issue)
Only turned it 7k, only did 50 passes or so, quite a few times on the dyno. Must have been a good one, only block mod was main/head studs

I wish I could base all my info on just one block.

[BILL-C]

The original post refers to a ROAD RACE application. I have found that a car that is driven hard enough to be a front runner in a competative road race class is alot tougher on an engine than a drag or street application with similar hp and rpm range. We build many FIA spec vintage road race 289's. A typical FIA legal competition AC cobra 289 with webber carbs, cnc ported 289 heads,11.2 cr,solid flat tappet cam,FIA mandated stock rockers,wet sump oiling, makes 450+ hp @ 7300 rpm. Block gets alot of deburring,cryo treatment,and internally balanced rotating assy is pretty light. 64-67 blocks with hi-po caps always used, and block longevity is excellent. One time a customer talked me into doing SVRA upgrade on one-roller cam, aftermarket heads,12.75 cr, 550 hp@8000 rpm and block cracked from main bolt holes towards cam in one race. I put a 475 hp and 7500 rpm limit on stock block apps now. In contrast, we have built many street / strip supercharged 302 mustang engines with 590+ hp@6200 rpm that lasted many years on street with very few blocks cracking.A couple did, however,split in half literally.In a road race application, if a stock block sbf is run hard enough to WIN races and it makes 500+ hp, they always eventually break in the main webbing.

[TTXPC]

Hey guys, was just putting it out there FYI, not saying that sbf blocks are rated at 650hp.....

[Bos's5.0]

Back to the 302 block, I had an early (1968) turbocharged one making 650 moroso slide rule HP, wore it out, did thousands of street k's detonated the snot out of it, enough to break pistons, pushed a few head gaskets, torched a cylinder head (crossfire issue)
Only turned it 7k, only did 50 passes or so, quite a few times on the dyno. Must have been a good one, only block mod was main/head studs

I wish I could base all my info on just one block.

That's a real jerk comment to make when the guy was just giving his experience with HIS MOTOR. No where did he make a claim that all 302's were like his. WOW!!!! Check your EGO.

[CNC BLOCKS]

Back to the 302 block, I had an early (1968) turbocharged one making 650 moroso slide rule HP, wore it out, did thousands of street k's detonated the snot out of it, enough to break pistons, pushed a few head gaskets, torched a cylinder head (crossfire issue)
Only turned it 7k, only did 50 passes or so, quite a few times on the dyno. Must have been a good one, only block mod was main/head studs

I wish I could base all my info on just one block.

That's a real jerk comment to make when the guy was just giving his experience with HIS MOTOR. No where did he make a claim that all 302's were like his. WOW!!!! Check your EGO.

To the know-all- ijust if the guy had 10 blocks that lived at 650 horse that would be real good info , But basing all your information on one block that made 650 is not really not good info . Do you get where I am coming from.

[Bos's5.0]

No I don't. You're saying people should not comment using any first hand experiences unless they have 10 identical copies? He's not basing anything, he's giving a first hand account of his experience. He DOES NOT SAY anything further. Draws no conclusions. Just says he had an early 289 with a turbo make 650hp reliably. NO more. He didn't cross it over to newer blocks, strokers, nothing... just his 289.

[CNC BLOCKS]

No I don't. You're saying people should not comment using any first hand experiences unless they have 10 identical copies? He's not basing anything, he's giving a first hand account of his experience. He DOES NOT SAY anything further. Draws no conclusions. Just says he had an early 289 with a turbo make 650hp reliably. NO more. He didn't cross it over to newer blocks, strokers, nothing... just his 289.

[sanfordandson]

You guys act like you just found out CNC is an ass...LOL. He's been that way for quite a while now.

[CNC BLOCKS]

You guys act like you just found out CNC is an ass...LOL. He's been that way for quite a while now.

Sandforndandson

I guess I found out on the LS thread who the ass was remember you don't even have a shop, Do you really want to go there????

[sanfordandson]

yes i forgot that everybody must have a shop full of cnc equipment to be allowed to post...lol did you get all the ins and outs of those ls motors figured out yet? hopefully the links we gave you to various heads and oil pans gave you a good start.

[CNC BLOCKS]

yes i forgot that everybody must have a shop full of cnc equipment to be allowed to post...lol did you get all the ins and outs of those ls motors figured out yet? hopefully the links we gave you to various heads and oil pans gave you a good start.

Waiting on Dart, I will be using a Steffs pan, Up in the air on the heads right now.

No one needs a full CNC shop but should at least have some real equipment and not play make believe.

[sanfordandson]

Knowledge helps too. Remember this quote??

18 gallons of oil a minute to run the Ls GM engine there is surely something wrong and with a lawn tractor filter I bet 75% of the oil is being bypassed thats 10 gallons more then the Gen 1 engine LOL.

Unreal what some people will say to sell something.

Its to bad it took a sales pitch by dart to get you into ls motors you've been missing out!

[CNC BLOCKS]

Knowledge helps too. Remember this quote??

18 gallons of oil a minute to run the Ls GM engine there is surely something wrong and with a lawn tractor filter I bet 75% of the oil is being bypassed thats 10 gallons more then the Gen 1 engine LOL.

Unreal what some people will say to sell something.

Its to bad it took a sales pitch by dart to get you into ls motors you've been missing out!

Over the years I have had maybe 3 calls on LS machine work, A new adventure for sure. I have some 5.3's to machine and it will be interesting to compare the LSX block to the Dart side by side and verse my on opinion.

From the calls I have had from Austrailia those guys seem to right on top of the LS platforms.

The oil flow data and oil filter was mentioned at the Dart semeinar I don't have any real info other then the oil filter that fits my Kabota tractor does fit the GM LS engines. LOL.

It's like you making up your a big engine builder only to find out you are only a bolt on boy, Which I find interesting and no not every one needs a CNC shop to build engines but its nice not having to farm everything out, AND YOU ?