Engine and Transmission Tech
tips, technology, tools and techniques related to vehicle driveline components
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mgb260 Jim Nichols Sequim,WA (2477 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Another 300 Stroker soon to hit the road
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mgb260 Jim Nichols Sequim,WA (2477 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: Another 300 Stroker soon to hit the road
You could also use this piston with bushed 350 rods in a 300 stroker with 350 crank:
[dssracing.com] |
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spridget bill green Maine (74 posts) Registered: 03/22/2008 01:29PM Main British Car: 3 1980 TR8, 1 TR7 2 Bugeye Sprite 1 MG midget TR8 3.5 and 5.0, Sprite 1098 and ? |
Re: Another 300 Stroker soon to hit the road
I also have a 300 stroker on the stand that's been waiting for the appropriate body. I found a disassembled TR8 with repaired front body damage. The body has come along nicely and is starting to go back together. I'm hoping to start real assembly soon.
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mgb260 Jim Nichols Sequim,WA (2477 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: Another 300 Stroker soon to hit the road
Another neat thing about the LS stroker pistons is you can get a 3.78 bore. Only .030 over. The 1.165 pin height will get around 9.5 compression and the 1.215 pin height will get around 10.5 with the 350 crank and rods in a 300 block.
[dssracing.com] Edited 2 time(s). Last edit at 08/09/2024 03:01PM by mgb260. |
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Re: Another 300 Stroker soon to hit the road
"350" rods, Buick or sbc ? Aren;t Buick 350 cast ? Grind down the mains to 2,500" ? Perhaps the Cad 4.9L. crank will prove to be less work ?
Art. |
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spridget bill green Maine (74 posts) Registered: 03/22/2008 01:29PM Main British Car: 3 1980 TR8, 1 TR7 2 Bugeye Sprite 1 MG midget TR8 3.5 and 5.0, Sprite 1098 and ? |
Re: Another 300 Stroker soon to hit the road
It is a Rover 4,0 block bored 60, 215 rods, ford 255 pistons, slightly worked 1964 Buick 300 heads with larger valves, roller rockers and a woody cam. That's what I remember without digging out the paperwork.
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Dan Jones Dan Jones St. Louis, Missouri (295 posts) Registered: 07/21/2008 03:32PM Main British Car: 1980 Triumph TR8 3.5L Rover V8 |
Re: Another 300 Stroker soon to hit the road
Bill, the 300 stroker that Jim mentions isn't a Rover/Buick aluminum block using a Buick 300 crankshaft. Instead it's an iron Buick 300 block using a Buick 350 crankshaft. If using the a 3.81" bore LS piston, the displacement is 351 cubic inches. Assuming you are using a Buick 300 crankshaft and 3.76" bore pistons, you'll be at 302 cubic inches.
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spridget bill green Maine (74 posts) Registered: 03/22/2008 01:29PM Main British Car: 3 1980 TR8, 1 TR7 2 Bugeye Sprite 1 MG midget TR8 3.5 and 5.0, Sprite 1098 and ? |
Re: Another 300 Stroker soon to hit the road
Sorry, yes i failed to mention the Buick 300 crankshaft with a performer intake. It was built 10 years ago.
I also have a complete 64 Buick 300 in storage so the iron 300 build will be of interest. |
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Dan Jones Dan Jones St. Louis, Missouri (295 posts) Registered: 07/21/2008 03:32PM Main British Car: 1980 Triumph TR8 3.5L Rover V8 |
Re: Another 300 Stroker soon to hit the road
I cleaned up a 1964 Buick 300 engine block today and popped it on the scale. With main caps and bolts, the clean standard bore comes in at 138 lbs. If I remember, I'll put a similar Buick 215 block and a Rover on the scale tomorrow.
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BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6496 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: Another 300 Stroker soon to hit the road
Sounds about right. The 215 should be about 60 lbs, the 3.5 about the same. I suspect the late Rover will be a bit heavier.
Jim |
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Dan Jones Dan Jones St. Louis, Missouri (295 posts) Registered: 07/21/2008 03:32PM Main British Car: 1980 Triumph TR8 3.5L Rover V8 |
Re: Another 300 Stroker soon to hit the road
I weighed the Buick 215 block at 68.5 lbs with main caps and bolts. That's for a clean bare block that was bored 0.030" over. Unlike the Buick 300, it does have the main and cam bearings installed, along with the block drains and the two small bolts for the oil pickup. The main caps and bolts accounted for approximately 10 lbs of the total.
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BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6496 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: Another 300 Stroker soon to hit the road
Interesting Dan. I shipped two or three 215 blocks out through the USPS and they had a 60 lb weight limit. That was including the caps and the cardboard box they shipped in. I was right at the limit with them, both according to my scales and the post office. Could there have been that much variation in the 215 blocks? I don't see how. Now if the one you weighed was a 3.5L Rover instead that would account for it.
Jim |
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Dan Jones Dan Jones St. Louis, Missouri (295 posts) Registered: 07/21/2008 03:32PM Main British Car: 1980 Triumph TR8 3.5L Rover V8 |
Re: Another 300 Stroker soon to hit the road
Jim, it's a semi-die cast Buick 215 block with a smoother finish than the sand cast Rover block. Also, the starter hole is the smaller diameter 2.75" versus the Rover 2.875" and it is stamped with HI 96513 on the deck that indicates it is a 1962 high compression model equipped with a 4 barrel carburetor. I checked the weight on a digital scale which read a bit higher at 69.2 lbs. I checked the USPS site and it states "the maximum mailable weight of any mailpiece is 70 pounds."
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minorv8 Jukka Harkola (271 posts) Registered: 04/08/2009 06:50AM Main British Car: Morris Minor Rover V8 |
Re: Another 300 Stroker soon to hit the road
For reference: I have a 4,6 Rover block laying around. It measures 35,9 kg which equals to 79,1 lbs. Bare top hat linered block with main caps and cam bearings. Casting dates to 1998.
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BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6496 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: Another 300 Stroker soon to hit the road
Good reference info, thanks. If we knew the weight difference between the different heads that would also help.
I have a 340 block I can weigh, it is 2lbs heavier than a 300 block. I was thinking it was right at 140 but it seems my memory is beginning to develop a few holes so better to weigh it on the grain scale and be sure. Jim |
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minorv8 Jukka Harkola (271 posts) Registered: 04/08/2009 06:50AM Main British Car: Morris Minor Rover V8 |
Re: Another 300 Stroker soon to hit the road
Rover head ERC0216 dated 1990 weighs 9,2 kg (20,3 lb). Head complete with valves and springs, less rocker gear.
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BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6496 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: Another 300 Stroker soon to hit the road
300 head in the same configuration is about 17 lbs.
Rover TA head, about 27 lbs. Jim |
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